N | Z = 7 |
◊ ◊ ◊ ◊ ◊ |
Nitrogen |
From the Greek "nitrum, -genes", meaning "native-soda begetter" |
(AM) Atomic Mass |
14.00674 amu |
♦ |
Oxidation States |
+1, +2, +3, +4, +5, -3 |
(BP) Boiling Point |
-195.8  °C |
♦ |
(MP) Melting Point |
-209.9 °C |
(ρ) Density |
0.001251 g/cm3 |
♦ |
Crystal Structure |
Hexagonal |
( χ ) Electronegativity |
3 |
♦ |
(AR) Atomic Radius |
0.75  Å |
Physical State |
Gas |
♦ |
(C) Heat Capacity |
1.04 J/g °C |
Electronic-Config |
1s2  2s2  2p3  |
♦ |
(I1) First Ionization E |
1402.31 kJ/mol |
(ΔHvap) Heat of Vaporization |
5.57 kJ/mol |
♦ |
(ΔHfus) Heat of Fusion |
0.72 kJ/mol |
Year of Discovery |
1772 |
♦ |
Location of Discovery |
United Kingdom |
(E°) Standard Potential |
N2O + 2 H+⇔ N2 + H2O (1.770 V) |
Stable isotopes |
 14N,  15N |
Discovered/Synthesized by |
Daniel Rutherford |
Natural Source |
Isolated from the liquifaction of air |
Common Uses |
Ammonia, fertilizer, explosives (TNT), refrigerants |
Other Info |
Makes up 80% of our atmosphere Exists in nature as the diatomic molecule N2 |
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