Nickel is a hard, silvery-white metal whose strength, ductility and resistance to heat and corrosion make it extremely useful for the development of a wide variety of materials — from wires to coins to military equipment.
This extremely useful metal is No. 28 in the periodic table of the elements, between the elements cobalt and copper. Nickel is a fairly good conductor of electricity and heat and is one of only four elements (cobalt, iron, nickel and gadolinium) that are ferromagnetic (magnetized easily) at room temperature. Nickel is a transition metal, meaning it has valence electrons in two shells instead of one, allowing it to form several different oxidation states.
Just the facts
- Atomic number (number of protons in the nucleus): 28
- Atomic symbol (on the periodic table of the elements): Ni
- Atomic weight (average mass of the atom): 58.6934
- Density: 8.912 grams per cubic centimeter
- Phase at room temperature: solid
- Melting point: 2,651 degrees Fahrenheit (1,455 degrees Celsius)
- Boiling point: 5,275.4 F (2,913 C)
- Number of isotopes (atoms of the same element with a different number of neutrons): 5 stable; 26 unstable
- Most common isotope: NI-58 (68.077 percent natural abundance