Everything About Nickel: History, Invention, Few Crucial Applications, Properties & Significance
For many thousands of years, men have used nickel in a lot of their needs. Previously, they weren't aware of the chemical properties of the element and which they could use nickel alloys in many different applications also.
What is nickel?
Nickel is a versatile metal, a chemical element, with an atomic number of 28 and chemical symbol Ni. It's glossy and often silvery-white in appearance. It is a ferromagnetic component which can exist in room temperature. There're only 3 other components that possess the same characteristic: gadolinium, iron and cobalt.
How was nickel discovered?
It is supposed that man has used nickel since 3500 BC. However, it was only in 1751 that it was categorized and recognized as a chemical element by Swedish chemist & mineralogist Axel Fredrik Cronstedt who, for the first time, thought it was a copper mineral. Since then, essential nickel ore minerals have been discovered, such as limonite, pentlandite and garnierite.
What are the characteristics of nickel?
The characteristics of nickel are divided into atomic, physical, isotopes, and chemical. Its atomic properties include its electronic configuration, electron structure, and any other electron-related stuff.
Its physical properties include its color (that's silvery-white), magnetic abilities (like what was mentioned earlier, it is among the four elements which have magnetic abilities at room temperature, but is non-magnetic when open in temperature greater than that), & unit cell structure (nickel has a face centered cubic unit cell). It is also ductile and rigid.
Nickel has 5 stable isotopes, each of which has an unique set of properties and characteristics. And when we speak of nickel's chemical properties, it takes place in many oxidation states. The most common of them all is +2.
Where is nickel used?
A lot of industries today use nickel in their operations. Some of the products that use nickel are rechargeable batteries, stainless steel, coinage, electric guitar strings, magnets, nickel alloys and any other kinds of alloys, including bronze, copper, lead, silver, gold, cobalt, aluminum & chromium. It is also used to make nickel cast irons and nickel steels.
Nickel alloys are usually used in power plants, gas and oil plants, and any other processing factories. They are good at corrosion resistance and heat regulation. They are also used in nuclear reactors and solar engineering. In our home, nickel alloys are found in our electrical heaters, cookers and any other appliance.
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