78
Pt
platinum
195.08

General properties

Group
group 10
Period
period 6
Category
transition metals
Standard atomic weight
195.084(9)
Melting point
2041.4 K (1768.3 °C)
Boiling point
4098 K (3825 °C)
Phase at STP
solid

Additional properties

Block
d-block
Electron configuration
[Xe] 4f¹⁴ 5d⁹ 6s¹
Electrons per shell
2, 8, 18, 32, 17, 1
Electronegativity
2.28
Density
21.45 g/cm³
Oxidation states
−3, −2, −1, 0, +1, +2, +3, +4, +5, +6
CAS Number
7440-06-4