Symbol: Bi
Atomic Number: 83
Atomic Weight: 208.98037
Element Classification: Other Metal
Discovered By: Known to the ancients.
Discovery Date: n/a (Unknown)
Name Origin: German: bisemutum, (white mass), Now spelled wismut.
Density (g/cc): 9.747
Melting Point (K): 544.5
Boiling Point (K): 1883
Appearance: Hard, brittle, steel-gray metal with a pinkish tinge
Atomic Radius (pm): 170
Atomic Volume (cc/mol): 21.3
Covalent Radius (pm): 146
Ionic Radius: 74 (+5e) 96 (+3e)
Specific Heat (@20°C J/g mol): 0.124
Fusion Heat (kJ/mol): 11.00
Evaporation Heat (kJ/mol): 172.0
Thermal Conductivity (@25°C W/m K):
Debye Temperature (K): 120.00
Pauling Negativity Number: 2.02
First Ionizing Energy (kJ/mol): 702.9
Oxidation States: 5, 3
Electronic Configuration: [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³
Lattice Structure: Rhombohedral (RHL)
Lattice Constant (Å): 4.750
Lattice C/A Ratio: n/a