Kr
Krypton (Atomic Number 36)
Category: noble | Period 4, Group 18 | Block: p
Rare noble gas used in energy-efficient insulated window glazing.
Atomic & Physical Constants
- Standard Atomic Weight:
- 83.7982 u
- Standard State Phase:
- Gas
- Electron Configuration:
- 2, 8, 18, 8
- Electronegativity (Pauling):
- 3
- Melting Point:
- 115.78 K
- Boiling Point:
- 119.93 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Insulated window gas, strobe lamps, laser optics
Discovery History
Discovered by William Ramsay (1898).
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