Bismuth (Bi) — Element 83

83 Bi 208.98

Bismuth

Element 83 · 208.98 u · p-block

post transition

Forms beautiful rainbow-colored hopper crystals. Used in Pepto-Bismol and low-melting alloys. Least toxic heavy metal.

Phase (STP)

Solid

Melting Point

271.3 °C

Boiling Point

1564 °C

Density

9.807 g/cm³

Electronegativity

2.02

Atomic Radius

160 pm

Ionization Energy

703 kJ/mol

Electron Affinity

91 kJ/mol

Discovered

1753 · Claude Francois Geoffroy

Electron Configuration

[Xe] 4f14 5d10 6s2 6p3