83
Bi
bismuth
208.98

General properties

Group
group 15 (pnictogens)
Period
period 6
Category
post-transition metals
Standard atomic weight
208.980 40(1)
Melting point
544.7 K (271.6 °C)
Boiling point
1837 K (1564 °C)
Phase at STP
solid

Additional properties

Block
p-block
Electron configuration
[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³
Electrons per shell
2, 8, 18, 32, 18, 5
Electronegativity
2.02
Density
9.78 g/cm³
Oxidation states
−3, −2, −1, +1, +2, +3, +4, +5 (a mildly oxide)
CAS Number
7440-69-9