7
N
14.007
Nitrogen
Element 7 · 14.007 u · p-block
nonmetal
Makes up 78% of Earth's atmosphere. Essential for amino acids, proteins, and fertilizers.
Phase (STP)
Gas
Melting Point
-210.0 °C
Boiling Point
-195.79 °C
Density
0.0012506 g/cm³
Electronegativity
3.04
Atomic Radius
65 pm
Ionization Energy
1402 kJ/mol
Electron Affinity
0 kJ/mol
Discovered
1772 · Daniel Rutherford
Electron Configuration
[He] 2s2 2p3
Electron Orbitals
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