F
Fluorine (Atomic Number 9)
Category: halogen | Period 2, Group 17 | Block: p
Extremely toxic, halogen gas. Most chemically reactive element.
Atomic & Physical Constants
- Standard Atomic Weight:
- 18.9984031636 u
- Standard State Phase:
- Gas
- Electron Configuration:
- 2, 7
- Electronegativity (Pauling):
- 3.98
- Melting Point:
- 53.48 K
- Boiling Point:
- 85.03 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Toothpaste fluoridation, PTFE (Teflon), refrigerants, uranium enrichment
Discovery History
Discovered by André-Marie Ampère (1886).
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