SymbolBi
Latin nameBismuthum
Atomic number83
Period6
Element categoryMetals
Relative atomic mass208.98037
GroupV.A
Electronegativity
1.9
Oxidation numbers
3, 5
Electron configuration
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d10 6s2 6p3
Density [g/cm3]
9.81
State
Solid
Melting point [°C]
271.44
Boiling point [°C]
1560
Atomic radius [pm]
143
Covalent radius [pm]
146
Thermal conductivity [W m-1K-1]
7.87
Heat capacity [J K-1g-1]
0.122
Discovery
1450
Hardness [Mohs scale]
2.5
Brinell hardness [MPa]
94.2
Young's modulus [GPa]
32
Electrical conductivity [S m-1]
8.67 · 105
Shear modulus [GPa]
12
1.st ionization energy [eV]
7.289
2.nd ionization energy [eV]
16.687
3.rd ionization energy [eV]
25.559
Stable isotopes
1
Unstable isotopes
18