Sr
Strontium (Atomic Number 38)
Category: alkaline | Period 5, Group 2 | Block: s
Alkaline earth metal that burns with brilliant crimson red flame.
Atomic & Physical Constants
- Standard Atomic Weight:
- 87.621 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 18, 8, 2
- Electronegativity (Pauling):
- 0.95
- Melting Point:
- 1050 K
- Boiling Point:
- 1650 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Pyrotechnic red fireworks, optical lattice atomic clocks, magnets
Discovery History
Discovered by William Cruickshank (chemist) (1808).
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