Nickel is found in meteorites but also comes from the silicon-burning process in a Type 1a supernova. This happens when a red giant blows off shells of its material to become a white dwarf star. The white dwarf star then collapses in on itself and explodes.Know More
Nickel is a hard, lustrous, silvery white metal. It is resistant to rust and tarnish. Its atomic number is 28, and it is one of the few ferromagnetic metals found. It conducts electricity and heat fairly well and can be hammered into different shapes and pulled into thin wire.
Because it's so resistant to corrosion, nickel is often used in electroplating. It's also used to make batteries such as the nickel-cadmium battery. It's also used as a catalyst in chemical reactions. Because the nickel isn't changed during these reactions, it can be used repeatedly.
Nickel is also very popular as an alloy for iron and steel. It makes iron more ductile and rust-resistant and makes steel more impact resistant. An alloy of nickel, iron and other metals called invar is valued because it neither expands nor contracts much with changes in temperature.
Nickel is also famous for being used as the 5-cent piece in the United States. However, the coin called nickel has only 25 percent of the element.Learn more about Atoms & Molecules
Nickel is highly resistant to corrosion or rusting. However, when exposed to excessive humidity, nickel does corrode. When exposed to oxygen and moisture, nickel forms a thin layer of greenish colored nickel oxide. In an acidic environment, nickel begins to rust too.Full Answer >
The most commonly occurring isotope of nickel, 58Ni, is composed of 30 neutrons. The isotope also contains 28 electrons and 28 protons.Full Answer >
The atomic number of nickel is 28, which means that it has 28 protons in its nucleus. It also has 28 electrons and 31 neutrons.Full Answer >
Nickel has eight electrons in the 3d orbital and two electrons in the 4s orbital, which means nickel has 10 total valence electrons. The reason it has 10 is because nickel is a transition metal, so the d and s electrons can participate in chemical bonding.Full Answer >