The element that paints fireworks crimson and, as strontium-90, once fell out of the sky after weapons tests.
- Atomic number
- 38
- Atomic mass
- 87.62 u
- Phase
- Solid
- Electron configuration
- [Kr] 5s²
- Melting point
- 1,050 K · 776.9 °C
- Boiling point
- 1,655 K · 1,381.9 °C
- Density
- 2.64 g/cm³
- Electronegativity
- 0.95
- Period / Group
- 5 / 2
- Discovery year
- 1790