N
Nitrogen (Atomic Number 7)
Category: reactive-nonmetal | Period 2, Group 15 | Block: p
Diatomic gas comprising 78% of Earth atmosphere.
Atomic & Physical Constants
- Standard Atomic Weight:
- 14.007 u
- Standard State Phase:
- Gas
- Electron Configuration:
- 2, 5
- Electronegativity (Pauling):
- 3.04
- Melting Point:
- 63.15 K
- Boiling Point:
- 77.355 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Synthetic fertilizers, liquid cryogenic coolant, food preservation
Discovery History
Discovered by Daniel Rutherford (1772).
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