10 Nickel Element Facts (Atomic Number 28 or Ni)

10 Nickel Element Facts (Atomic Number 28 or Ni) Nickel (Ni) is component number 28 on theâ periodic table, with a nuclear mass ofâ 58.69. This metal is found in regular day to day existence in tempered steel, magnets, coins, and batteries. Heres an assortment of fascinating realities about this significant progress component: Nickel Facts Nickel is found in metallic shooting stars, so it was utilized by antiquated man. Curios dating as right on time as 5000 BC produced using nickel-containing meteoritic metal have been found in Egyptian graves. In any case, nickel wasnt perceived as another component until Swedish mineralogist Axel Fredrik Cronstedt recognized it in 1751 from another mineral he got from a cobalt mine. He named it a contracted rendition of the word Kupfernickel. Kupfernickel was the name of the mineral, which generally interprets as significance trolls copper since copper diggers said the metal went about as if it contained imps that kept them from extricating copper. As it turned out, the ruddy metal was nickel arsenide (NiAs), so its obvious copper was not separated from it.Nickel is a hard, flexible, bendable metal. It is a glossy silver metal with a slight gold hint that takes a high clean and opposes consumption. The component oxidizes, however the oxide layer forestalls further movement throu gh passivation It is a reasonable conveyor of power and warmth. It has a high liquefying point (1453  ºC), promptly shapes amalgams, might be saved through electroplating, and is a valuable impetus. Its mixes are for the most part green or blue. There are five isotopes in common nickel, with another 23 isotopes with known half-lives. Nickel is one of three components that are ferromagnetic at room temperature. The other two components, iron and cobalt, are situated close to nickel on the intermittent table. Nickel is less attractive than iron or cobalt. Before uncommon earth magnets were known, Alnico magnets produced using a nickel amalgam were the most grounded lasting magnets. Alnico magnets are surprising in light of the fact that they keep up attraction in any event, when they are warmed red-hot.Nickel is the chief metal in Mu-metal, which has the bizarre property of protecting attractive fields. Mu-metal comprises of around 80% nickel and 20% iron, with hints of molybdenum.The nickel compound Nitinol shows shape memory. At the point when this 1:1 nickel-titanium compound is warmed, twisted into shape, and cooled it very well may be controlled and will come back to its shape.Nickel can be made in a supernova. Nickel saw in supernova 2007bi was the radioisotope nickel-56, which rotted into cobalt-56, which th us rotted into iron-56.Nickel is the fifth most bottomless component in the Earth, yet just the 22nd most plenteous component in the crustâ (84 parts per million by weight). Researchers accept nickel is the second most plentiful component in the earths center, after iron. This would make nickel multiple times more focused underneath the Earths outside than inside it. The universes biggest nickel store is in Sudbury Basin, Ontario, Canada, which covers a region 37 miles in length and 17 miles wide. A few specialists accept the store was made by a shooting star strike. While nickel occurs free in nature, it is principally found in the minerals pentlandite, pyrrhotite, garnierite, millerite, and niccolite. Nickel and its mixes are cancer-causing. Breathing nickel mixes can cause nasal and lung malignant growth and incessant bronchitis. In spite of the fact that the component is basic in gems, 10 to 20 percent of individuals are delicate to it and create dermatitis from wearing it. While people dont use nickel for any known biochemical responses, its basic for plants and happens normally in organic products, vegetables, and nuts.Most nickel is utilized to make erosion safe combinations, including hardened steel (65%) and heat-safe steel and non-ferrous amalgams (20%). About 9% of nickel is utilized for plating. The other 6% is utilized for batteries, hardware, and coins. The component loans a greenish color to glass. It is utilized as an impetus to hydrogenate vegetable oil.The US five-penny coin called a nickel is in reality more copper than nickel. The advanced US nickel is 75% copper and just 25% nickel. The Canadian nickel is made essentially of steel. Nickel Element Fast Facts Component Name: Nickel Component Symbol: Ni Nuclear Number: 28 Grouping: D-square change metal Appearance: Solid silver-hued metal Disclosure: Axel Frederik Cronstedt (1751) Electron Configuration: [Ar] 3d8 4s2 or [Ar] 3d9â 4s1

Malnutrition of African Students :: Poverty Starvation Africa Essays

Ailing health of African Students In this paper, I will talk about the impacts of hunger of kids in Africa and the impact it has on their school execution. I will likewise inspect what has been done to improve the issue of starvation and the long street ahead to comprehend this issue. I accept this issue is intense and ought not be over looked by different nations. Such a significant number of kids wake up hungry and head to sleep starving in Africa. Their days are difficult to overcome and going to class and thinking is right around an outlandish errand. Numerous youngsters have no vitality and lose the desire to get training. A model I found while looking into was of a little youngster named Kede Fatuma, who is a destitute kid living in Ethiopia who once invested wholeheartedly in her instruction and her incredible capacity as a sprinter. â€Å"These days, nonetheless, food is rare in Dere Kiltu. Kede, 10, has neither the time nor the solidarity to stay aware of her running. Actually, she no longer goes to class by any stretch of the imagination. Rather, she utilizes her restricted vitality to support her family gather water, an exertion that includes a two-hour stroll to the closest stream (www.washingtonpost.com).† This is a model that is unfortunately valid for some youngsters living in Africa. In late examinations, they have indicated that those kids who have a sound breakfast to begin their day are demonstrated to have higher grades, remain alert all through the school day, can think, and are bound to go to class. So because of having a fair eating regimen, youngsters can hold more data and learn more at long last. In the subjects of math and science which include a ton of fixation, Africa was appeared to have low scores when contrasted with different nations that are not blasted by craving and destitution. In an examination done on one school in Zimbabwe, they found that huge numbers of the understudies in the class were constantly nodding off. The explanation they found for this was weariness brought about by absence of food. Most of the youngsters just get one dinner daily. Other more unfortunate youngsters ask their neighbors for food and frequently get just a little bit of cornmeal. Craving influences numerous pieces of Africa and it is a developing issue that is the reason for some passings every year. Ailing health of African Students :: Poverty Starvation Africa Essays Ailing health of African Students In this paper, I will talk about the impacts of ailing health of kids in Africa and the impact it has on their school execution. I will likewise look at what has been done to improve the issue of starvation and the long street ahead to settle this issue. I accept this issue is intense and ought not be over looked by different nations. Such a large number of youngsters wake up hungry and hit the hay starving in Africa. Their days are difficult to overcome and going to class and focusing is right around an unthinkable undertaking. Numerous youngsters have no vitality and lose the aspiration to get instruction. A model I found while inquiring about was of a little youngster named Kede Fatuma, who is a destitute kid living in Ethiopia who once invested wholeheartedly in her instruction and her extraordinary capacity as a sprinter. â€Å"These days, be that as it may, food is rare in Dere Kiltu. Kede, 10, has neither the time nor the solidarity to stay aware of her running. Truth be told, she no longer goes to class by any stretch of the imagination. Rather, she utilizes her restricted vitality to support her family gather water, an exertion that includes a two-hour stroll to the closest stream (www.washingtonpost.com).† This is a model that is unfortunately valid for some kids living in Africa. In late investigations, they have demonstrated that those kids who have a sound breakfast to begin their day are demonstrated to have higher grades, remain alert all through the school day, can focus, and are bound to go to class. So because of having a decent eating routine, kids can hold more data and learn more at long last. In the subjects of math and science which include a ton of focus, Africa was appeared to have exceptionally low scores when contrasted with different nations that are not blasted by craving and destitution. In an investigation done on one school in Zimbabwe, they found that a large number of the understudies in the class were constantly nodding off. The explanation they found for this was fatigue brought about by absence of food. Most of the youngsters just get one feast a day. Other more unfortunate youngsters ask their neighbors for food and regularly get just a little bit of cornmeal. Craving influences numerous pieces of Africa and it is a developing issue that is the reason for some passings every year.

Physical Signs and Symptoms of Alcoholism

Physical Signs and Symptoms of Alcoholism Addiction Alcohol Use Print Physical Signs and Symptoms of Alcoholism By Buddy T facebook twitter Buddy T is an anonymous writer and founding member of the Online Al-Anon Outreach Committee with decades of experience writing about alcoholism. Learn about our editorial policy Buddy T Medically reviewed by Medically reviewed by Steven Gans, MD on February 21, 2016 Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital. Learn about our Medical Review Board Steven Gans, MD Updated on September 11, 2019 Bliznetsov / Getty Images More in Addiction Alcohol Use Binge Drinking Withdrawal and Relapse Children of Alcoholics Drunk Driving Addictive Behaviors Drug Use Nicotine Use Coping and Recovery There are many signs and symptoms related to drinking problems. Alcoholism is a general term rather than the clinical term, which is alcohol use disorder.  It is considered a progressive disease, meaning that the effects of drinking alcohol become increasingly more severe over time. Those who use alcohol may begin to show early signs of a problem, then progress to showing symptoms of alcohol abuse. If drinking continues, they may later show signs of alcoholism or alcohol dependence. Taking an  alcoholism  screening quiz  can help you determine whether you have the symptoms of an alcohol use disorder. Early Signs of an Alcohol Problem Early signs of alcoholism include frequent intoxication, an established pattern of heavy drinking and drinking in dangerous situations, such as when driving. Other early signs of alcoholism include black-out drinking or a drastic change in demeanor while drinking, such as consistently becoming angry or violent. Progressive symptoms of  alcohol abuse  occur when you continue  to drink after your drinking reaches a level that causes recurrent problems. Continuing to drink after it causes you to miss work, drive drunk, shirk responsibilities or get in trouble with the law is considered alcohol abuse. Facts About Alcohol Abuse Symptoms of Alcohol Use Disorder The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, (DSM-5) published in 2013 lists 11 symptoms of alcohol use disorder. The symptoms: You often drink alcohol in  larger amounts or over a longer period than you intendYou want to  cut down or control  your alcohol use but your efforts may be unsuccessfulYou spend a lot of time getting alcohol, using it, and recovering from the effects of your drinkingYou have alcohol  cravingsYour use of alcohol results in failing to meet your obligations at work, school, or homeYou continue to use alcohol despite it leading to recurrent problems socially or in your relationshipsYou give up or reduce your participation in important social, occupational, or recreational activities because of your use of alcoholYou use alcohol in situations in which it is physically hazardous  (such as driving, operating machinery, performing surgery)You continue to use alcohol even knowing that you have a physical or psychological problem that is caused by or made worse by alcoholYou experience alcohol  tolerance, either by needing more alcohol to get intoxicated or you feel diminished effects when dr inking the same amount of alcoholYou experience  withdrawal  syndrome or you use alcohol or other substances to prevent withdrawal symptoms Mild, Moderate, or Severe If you have two to three symptoms, you could be diagnosed with a mild disorderIf you have four to five symptoms, you are likely to have a moderate alcohol use disorderIf you have six or more of the symptoms, you have a severe alcohol use disorder, and it is likely that you would be considered to be an alcoholic under the common use of the term Previous definitions of alcohol dependence and alcoholism included having three of seven symptoms that included neglect of other activities, excessive use of alcohol, impaired control of alcohol consumption, the persistence of alcohol use, large amounts of time spent in alcohol-related activities, withdrawal symptoms, and tolerance of alcohol. Physical Signs of Alcoholism Alcohol use can have physical effects. These are some of the physical signs that can develop: The frequent smell of alcohol on the breath, which can continue for hours after heavy drinkingWeight loss due to the neglect of eating in favor of drinkingDry skin and brittle hair and nails from the dehydrating effects of alcohol, which can result in an increased appearance of aging and wrinklesBroken capillaries on your face and noseYellow eyes and skin due to liver damagePoor hygiene Physical Symptoms of Alcoholism A Word From Verywell Alcoholism is a treatable disease, with many treatment programs and approaches  available to support alcoholics who have decided to get help. Getting help before your problem drinking progresses to severe alcohol use disorder can save your life.

Racism in the Adventures of Huckleberry Finn - Free Essay Example

Sample details Pages: 2 Words: 499 Downloads: 5 Date added: 2019/04/29 Category Literature Essay Level High school Tags: Huckleberry Finn Essay Mark Twain Essay Racism Essay Did you like this example? Is it wrong that Mark Twain used the word Nigger? Many black African Americans very upset from the author using Nigger in the story because they think that its racist and disrespectful towards the way they used the N word. Nobody should ever call any black person out by the color of their skin. Yes, its wrong and disrespectful to call any black African American person a nigger because thats not what their parents named them when they were born. Nigger doesnt have to be used for anybody in that term of being a black person. But the way Mark Twain was growing up he might have heard people around him call the slaves niggers because of the color of their skin. Don’t waste time! Our writers will create an original "Racism in the Adventures of Huckleberry Finn" essay for you Create order The color doesnt mean anything to nobody. There shouldnt even be books like that being published about black African Americans like that because its rude and disrespectful. Yes, I get upset that the fact that me being a black African American student has to listen to my teacher go on and on about my culture of people thats just like me. But it teaches education to black and whites. Nigger doesnt always reflect on a black person. Not everybody thinks that Huck Finn shouldnt be removed because its only what the author has heard and seen. In fact, other students have their own opinions about the Huckleberry Finn book. It shouldnt be used as a type of term such as racist because not everybody takes the book serious as the black African American culture. Just look at it like your very sensitive about simple things and you want to know how to not let things such as slavery. Think about how others felt when they first read the beginning of the chapters and boom it hurts your feelings because of the way the author may say the N the wrong way. Huck Finn should be removed from the reading lists for any kind of students and adults to read. It shouldnt be allowed to any public schools all over the United States. Huck Finn gets judge every day by people because the way it was written or maybe they just didnt like the book. Looking back at the video we watched in the class told us how each student felt about the book and the way they saw it such as it may be a racist book or a book to teach what the author saw. It was basically about should Huck Finn be removed from the reading list. It just shouldnt be on bookshelves for any public schools. Its alright for a public library to have that book but in schools no it doesnt be allowed in schools. Most students dont really like Huck Finn because it was kind of wrong to any kind of racist. People take things to the heart and they look at it like they dont like there skin color culture or they just hate the way we became when growing up.

The State Of California Overturn Prop 209 - 1731 Words

To: Social Workers, Higher Education Admissions to the State of California From: #34328759 Date: 11/25/2014 RE: Affirmative Action: A Win-Win for all Students in California Beyond Proposal: I propose that the state of California overturn Prop 209, which had previously removed race, religion, sex, color, ethnicity and national origin as consideration factors for admission to universities for undergraduate learning. Increasing additional students of color who enroll not only expands opportunities but also enhances the educational experiences of white students. Overturning Proposition 209 means there would be an increase in access to higher education for a growing number of students, reflecting a more accurate distribution of the†¦show more content†¦Overturning Proposition 209 would allow universities to consider race, ethnicity and gender in admissions. Affirmative action was an outcome of the Civil Rights Movement during the 1960s. In the past, affirmative action has been used to improve opportunities with education and employment for excluded minority groups in American society President Kennedy was the first to use this term â€Å"in an Executive order tha t directed government contractors to take affirmative action to ensure that applicants are employed, and that employees are treated during employment, without regard to their race, creed, color, or national origin† (Affirmative Action, 2014). Affirmative action was a temporary remedy that would last until there was a level playing field for all Americans. However, this was not the case; in the 1970s, there was a lot of backlash and arguments about affirmative action and how it was a form of reverse racism. The Bakke Case made the argument of reverse racism famous. â€Å"In 1978, a white male, had been rejected two years in a row by a medical school that had accepted less qualified minority applications- the school had a separate admissions policy for minorities and reserved 16 out of 100 places for minority students† (Brunner Rowen, 2014). From this, the Supreme Court made it illegal to have quota systems in affirmative action programs. In November 1996 the voters of C alifornia passed Proposition 209, which banned race as a consideration in public

Peer Pressure Free Essays

Have you ever been forced to do anything ? Have u ever felt that you are in a tight corner because of someone’s comment? We all could face situations like that; we all could have faced peer pressure. What is peer pressure? â€Å" Peer pressure is when someone or a group of people influences or encourages others to do things they do not want to do or tries to change people’s attitude, or behavior towards something or it is the feeling that someone of your own age is pushing you towards making a certain choice, good or bad†( http://www.thecoolspot. We will write a custom essay sample on ï » ¿Peer Pressure or any similar topic only for you Order Now gov/pressures.asp). Peer pressure is mostly common among teens, they could accept to do something they don’t want to do as their friends would make fun of them or everyone is just trying to fit in. Because when you act in a different way you are considered an outsider and not cool. The desire to fit in can go as far as doing things you have never imagined. We all are influenced by our peers, both negatively and positively. It helps us to define who we are. It is how we chose to react to peer pressure that defines who we are as individuals. Are we a leader or a follower? Both types of people are needed to make the world go round or just you may lose yourself and forget who you are just to satisfy your peers. Peers influence your life, even if you do not realize it, just by spending time with you. You learn from them, and they learn from you. It is only human nature to listen to and learn from other people in your age group. Peers can have a positive influence on each other. For example, a student in your science class taught you an easy way to remember something related to the subject. You might admire a friend who is always a good support for you and try to be like him, these are examples of how peers positively influence each other every day. Sometimes peers influence each other in negative ways. For example, some people in school might try to get you to cut class with them, or your friend might try to convince you to try to start smoking or taking drugs with him, or your friend in might want you to shoplift with  him. The causes of peer pressure are so many, One of the main reasons that can lead to peer pressure is lack of self-confidence, the feeling of being alone, not accepted by anyone or by society, everyone is making fun of you and the desire to fit in, these reasons can affect anyone easily and put him under this pressure. One of the causes also is changing the environment you are used to, like leaving high school and going to University, meeting new people with different characters and personalities. Or the big problem might be in the way parents bring up their children. This can affect society in good and bad ways. The effects of negative pressure can lead to the presence of cloning minds different people but have the same mentality, thinking in the same way and acting in an inappropriate way that is unacceptable by the society. A question that always comes up. Why do people give in to peer pressure? People give in to peer pressure because they want to be liked, may be Others go along because they are curious to try something new that others are doing. The idea that everybody is doing that thing can influence some people to leave their common sense behind and the way they judge things. How can people combat peer pressure? The normal way of just saying no does not work. Sure, it sounds good to say no but in reality, a person may want to say no, but just cannot as it is tough to be the only one who is facing this pressure, but on the other hand you can pay attention to your feelings and beliefs about the right and wrong things that can help you more self-confidence and having a strong pack up from parents, family even from your teachers can help you stand firm. One of the solutions that help you to run away from peer pressure is to have at least one friend, who is willing to say no too. This takes a lot of the power out of this pressure and makes it much easier to resist. Try to ask for advise from your teacher or your family and they will support you facing peer pressure, stay away from friends who use drugs, smoke cigarettes, or even lying. Also try to help a friend who is facing peer pressure or having troubles resisting it, it can be so powerful to one of them by joining the other in order not to  feel alone in this nightmare. To sum up peer pressure is like a nightmare chasing us all, so If you continued to face peer pressure and you are finding it difficult to handle, talk to someone you can trust and don’t feel guilty if you have made mistakes. Stand up again and continue your way and prepare youself for the next time you face peer pressure. How to cite ï » ¿Peer Pressure, Papers

Professional Practices and Power Lines an Example of the Topic Science and Technology Essays by

Professional Practices and Power Lines Public concerns on possible health risks from residential exposures to low-strength, low-frequency electric and magnetic fields became a major focus of scientists and government officials. In 1991, the National Academy of Sciences (NAS) was asked by the United States of America Congress to review the researches conducted on the effects from exposure to electromagnetic fields and determine whether the scientific basis was sufficient to assess health risks from such exposures (Miller et al., 1996; Moulder, 2006). Need essay sample on "Professional Practices and Power Lines" topic? We will write a custom essay sample specifically for you Proceed Overview Health Effects According to studies (ELF Electric & magnetic fields: health effects & exposure guidelines, n.d.), biological material being affected by electromagnetic fields depends on the frequency of the source. It usually acts as waves but at times, it acts like particles especially at high frequencies. The particle nature of electromagnetic energy is important because it is the energy per particle (or photons) that determines what biological effects electromagnetic energy will have (Possible health effects of exposure to residential electric and magnetic fields, 1997). These photons are believed to have abilities to break chemical bonds (called ionization) because it has enough energy (Moulder, 2006). The ionizing and non-ionizing characteristics of electromagnetic fields and biological effects lead to researches on its possible carcinogenic effects to humans. The International Agency for Research on Cancer (IARC) is the one responsible for cancer research for the World Health Organization. IARC reported in 2001 that "overall, extremely low frequency magnetic fields were evaluated as possibly carcinogenic to humans, based on the statistical association of higher level residential extremely low frequency (ELF) magnetic fields and increased risk for childhood leukemia (Miller, et al., 1996; Repacholi, 1998)." However, studies are still underway to determine if ELF exposure can influence cancer promotion or co-promotion (Electric and magnetic fields, 2003). Laboratory studies on humans exposed to intense electric and magnetic fields produced no observed changes in blood pressure, body temperature, sleep, appetite or physical functions (Electric and magnetic fields, 2003). Other studies showed mood and behavior unchanged in human subjects (Repacholi, 1998). The use of cardiac pacemakers and other implanted electromedical devices was also reported to be affected by strong electromagnetic fields (Repacholi, 1998). WHO then suggested manufacturers of such devices to manufacture less susceptible electromedical devices to EMI. These fields were shown to cause electromagnetic interference (EMI) and may be more of a threat than a benefit to the patient. It was suggested that these patients must consult their doctor for possible susceptibility to EMI. Environmental Effects The electromagnetic fields were known to lower the dielectric constant of the water due to the resultant partial or complete destruction of the hydrogen-bonded network (Moulder, 2006; Electric and magnetic fields, 2003). In addition to the breakage of hydrogen bonds, electromagnetic fields may perturb in the gas/liquid interface and produce reactive oxygen species (Electric and magnetic fields, 2003). These changes in hydrogen bonding may effect carbon dioxide hydration resulting in pH changes. This consequently decreases the quality of soil and affects agriculture and economic output, especially on areas highly dependent on agriculture as source of living. It also affects ground water, thus, affects public health of the community dependent on it. Power lines Siting Which is safer: power lines constructed underground or overhead? Many aspects should be considered when putting up power lines. If health risk is the more focus though scientific evidence is not strong enough, power lines should be underground in crowded areas like rural or cities. On areas where agriculture is critical, powerlines should be overhead to avoid effects on water quality since this is scientifically supported. But considering government management and budget, it is more economical to put powerlines overhead due to easy access and earlier repair in cases of problems or emergencies. At present, Grade A copper priced at 50 U.S. cents per ton (Copper, n.d.). The per capita income demand for copper in North America in year 2000 was 12 kg (Copper, n.d.). It is therefore important to have an effective system of health information and communication among scientists, governments, industry and the public because it can help raise general awareness to deal with exposure to ELF fiel ds and reduce any mistrust and fears. Conclusion The researches on effects of electromagnetic fields have shown interactions between fields and biological systems can occur. But based on risk assessment performed in many studies, significant adverse interactions at ambient fields to which human and animals are typically exposed remains unclear and insufficient. The research does hold out the possibility of a risk, but it is expected that research efforts that are currently underway will likely address this concern. Many researches have been done that provided the present established exposure limit values. These are now used to provide protection against the acute hazards that can result from high intensity exposure levels. These studies along with future researches will determine if there is a need for lowering the limits to provide protection against the consequences of chronic low level exposure. References Base Metals (n.d.) Copper [Internet]. BC Hydro. (2003) Electric and magnetic fields [Internet]. British Colombia, BC Hydro. Available from: http://www.bchydro.com/> [Accessed 11 January 2007]. Commission on Life Sciences (1997) Possible health effects of exposure to residential electric and magnetic fields [Internet]. Commission on Life Sciences (CLS). Available from: http://books.nap.edu/openbook.php> [Accessed 11 January 2007]. Department of Labour (n.d.) ELF Electric & Magnetic Fields: Health Effects & Exposure Guidelines [Internet]. Radiation Safety Unit, Department of Labour. Saskatchewan, Canada. Miller, A.B., To, T., Agnew, D.A., Wall, C., and Green, L.M. (1996) Leukemia following occupational exposure to 60 - Hz electric and magnetic fields among Ontario electric utility workers, American Journal of Epidemiology, 144(2) July, pp. 150-60. Moulder, J.E. (2006) Questions and answers on EMF and its effects: What's new? [Internet]. Version 10.1.1 (August). Repacholi, M. (1998) Electromagnetic fields and public health: extremely low frequency (ELF) [Internet]. World Health Organization (WHO). Geneva, WHO.