83 - Bismuth post-transition metal
Discovered by Claude François Geoffroy in 1753
- Atomic Radius (Å)
Bismuth is a chemical element with symbol Bi and atomic number 83. Bismuth, a pentavalent post-transition metal, chemically resembles arsenic and antimony. Elemental bismuth may occur naturally, although its sulfide and oxide form important commercial ores.
Shell | Electrons | Orbitals |
---|---|---|
1 | 2 | 2 in 1s |
2 | 8 | 2 in 2s + 6 in 2p |
3 | 18 | 2 in 3s + 6 in 3p + 10 in 3d |
4 | 32 | 2 in 4s + 6 in 4p + 10 in 4d + 14 in 4f |
5 | 18 | 2 in 5s + 6 in 5p + 10 in 5d |
6 | 5 | 2 in 6s + 3 in 6p |
208.98 u
Atomic Mass
1.6 Å
Atomic Radius
1837 K
Boiling Point
1.48 Å
Covalent Radius
9.78 g/cm³
Density
90.92
Electron Affinity
2.02
Electronegativity
7.29 eV
First Ionization Energy
544.67 K
Melting Point
6
Number of Shells
5
Electron Valency
83
Atomic Number
2, 8, 18, 32, 18, 5
Electron Shell Occupations
0.12 J/(g K)
Specific Heat