Ni
Nickel · element 28
Transition Metal · Solid at room temperature
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel belongs to the transition metals and is hard and ductile.
Key facts
Atomic mass
58.69344 u
how heavy one atom is
Phase (room temp.)
Solid
Density
8.908 g/cm³
how tightly packed it is
Melting point
1728 K (1455 °C)
when solid turns to liquid
Boiling point
3003 K (2730 °C)
when liquid turns to gas
Period
4
its row in the periodic table
Group
10
its column in the periodic table
Block
D-block
the neighbourhood it lives in
Electronegativity
1.91
how strongly it pulls electrons
Electron configuration
[Ar] 3d8 4s2
where its electrons live
Shells
2 · 8 · 16 · 2
electrons in each layer, inside to out
Discovered by
Axel Fredrik Cronstedt
who found it
Appearance
lustrous, metallic, and silver with a gold tinge
what it looks like
Source: Wikipedia