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Bismuth (Bi)
Atomic number 83 · post
| Atomic number | 83 |
|---|---|
| Atomic mass | 208.9804 u |
| Molar mass | 208.9804 g/mol |
| Category | post |
| Group / period / block | 15 / 6 / p |
| Electron configuration | [Xe] 4f14 5d10 6s2 6p3 |
| Electrons per shell | 2, 8, 18, 32, 18, 5 |
| Electronegativity (Pauling) | 1.9 |
| Atomic radius | 160.0 pm |
| Density | 9.79 g/cm³ |
| First ionisation energy | 7.2855 eV |
| Melting point | 544.55 K (271.40 °C) |
| Boiling point | 1837.15 K (1564.00 °C) |
| Common oxidation states | +3 |
| Abundance in Earth's crust | 0.0085 ppm |
Uses
Stomach medicines, low-melting alloys
Discovery
Known since ancient times