Rn
Radon (Atomic Number 86)
Category: noble | Period 6, Group 18 | Block: p
Colorless, odorless radioactive noble gas produced by radium decay.
Atomic & Physical Constants
- Standard Atomic Weight:
- 222 u
- Standard State Phase:
- Gas
- Electron Configuration:
- 2, 8, 18, 32, 18, 8
- Electronegativity (Pauling):
- 2.2
- Melting Point:
- 202 K
- Boiling Point:
- 211.5 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Radiation therapy research, earthquake hydrology tracking
Discovery History
Discovered by Friedrich Ernst Dorn (1900).
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