Bismuth

Post-transition metal · 208.98040 u · group 15, period 6

Bismuth · Bi

Atomic number83

SymbolBi

CategoryPost-transition metal

Standard stateSolid

Group · Period · Block15 · 6 · p

Electron configuration[Xe]6s2 4f14 5d10 6p3

Atomic mass208.98040 u

Atomic radius207 pm

Protons / Neutrons / Electrons83 / 126 / 83

Shells (e⁻ per shell)2, 8, 18, 32, 18, 5

Electronegativity (Pauling)2.02

Ionization energy7.289 eV

Electron affinity0.946 eV

Oxidation states+5, +3

Melting point544.5 K · 271.4 °C

Boiling point1.84e+3 K · 1.56e+3 °C

Density9.807 g/cm³

Year discovered1753

CPK color

#9E4FB5

State at room temp (25 °C)

solid

Position