| Nickel |
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| Atomic Number - | 28 | Melting Point (°C,°F) - | 1455 °C, 2651 °F |
| Atomic Symbol - | Ni | Boiling Point (°C,°F) - | 2913 °C, 5275 °F |
| Atomic Mass - | 58.69 | Electron Configuration - | [Ar] 3d8 4s2 |
| Group - | 10 | Electrons Per Shell - | 2, 8, 16, 2 |
| Period - | 4 | Protons - | 28 |
| Series - | Transition Metals | Neutrons - | 31 |
| Block - | f-block | | |
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Element Description - Nickel is a metallic chemical element in the periodic table that has the symbol Ni and atomic number 28. |
Element Characteristics - Nickel is a silvery white metal that takes on a high polish. It belongs to the iron group, and is hard, malleable, and ductile. It occurs combined with sulfur in millerite, with arsenic in the mineral niccolite, and with arsenic and sulfur in nickel glance.
On account of its permanence in air and inertness to oxidation, it is used in the smaller coins, for plating iron, brass, etc., for chemical apparatus, and in certain alloys, as German silver. It is magnetic, and is very frequently accompanied by cobalt, both being found in meteoric iron. It is chiefly valuable for the alloys it forms.
Nickel is one of the five ferromagnetic elements. However, the US "nickel" coin is not magnetic, because it actually is mostly copper, but old Canadian nickels minted until 1958 were.
The most common oxidation state of nickel is +2, though 0, +1, +3 and +4 Ni complexes are observed.
The unit cell of nickel is an FCC with a lattice parameter of 0.356 nm giving a radius of the atom of 0.126 nm.
Nickel-58 is one of the most stable nuclides of all the existing elements, second in stability only to Iron-56. |
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