The heaviest element that is very nearly stable, and the one that grows spectacular rainbow crystals.
- Atomic number
- 83
- Atomic mass
- 208.98 u
- Phase
- Solid
- Electron configuration
- [Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³
- Melting point
- 544.7 K · 271.6 °C
- Boiling point
- 1,837 K · 1,563.9 °C
- Density
- 9.78 g/cm³
- Electronegativity
- 2.02
- Period / Group
- 6 / 15
- Discovery year
- 1753