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Compare Fluorine vs Nitrogen

Comparing Fluorine (F) and Nitrogen (N). Atomic numbers 9 and 7 with atomic masses 18.998 u and 14.006 u, classified as nonmetal and nonmetal. Below: a side-by-side comparison of their physical, atomic, electron-configuration and historical properties, including density, melting and boiling points, ionization energies, oxidation states and discovery history.

vs
F
Fluorine
#9
N
Nitrogen
#7

Periodic properties of the elements

FluorineNitrogen
SymbolFN
Atomic number97
Group1715
Period22
Blockpp
Element categoryNonmetalNonmetal

Physical properties

FluorineNitrogen
Phase at STPGasGas
Density1.696 g/cm31.251 g/cm3
Atomic weight18.9984 u14.0064 u
Melting point53.48 K
-219.67 °C
-363.406 °F		63.15 K
-210 °C
-346 °F
Boiling point85.03 K
-188.12 °C
-306.616 °F		77.355 K
-195.795 °C
-320.431 °F

Atomic properties

FluorineNitrogen
Electronegativity (Pauling Scale)3.983.04
Electron affinity328.165 kJ/mol-6.8 kJ/mol
Oxidation states−1, 0
(oxidizes oxygen)		−3, −2, −1, +1, +2, +3, +4, +5
(a strongly acidic oxide)
Ionization energies
  1. 1681 kJ/mol
  2. 3374.2 kJ/mol
  3. 6050.4 kJ/mol
  4. 8407.7 kJ/mol
  5. 11022.7 kJ/mol
  6. 15164.1 kJ/mol
  7. 17868 kJ/mol
  8. 92038.1 kJ/mol
  9. 106434.3 kJ/mol
  1. 1402.3 kJ/mol
  2. 2856 kJ/mol
  3. 4578.1 kJ/mol
  4. 7475 kJ/mol
  5. 9444.9 kJ/mol
  6. 53266.6 kJ/mol
  7. 64360 kJ/mol

Electron configuration

FluorineNitrogen
Shorthand configuration[He] 2s2 2p5 [He] 2s2 2p3
Full configuration1s2 2s2 2p5 1s2 2s2 2p3
Electrons per shell2, 72, 5

History

FluorineNitrogen
DiscoveryAndré-Marie Ampère (1810)Daniel Rutherford (1772)
First isolationHenri Moissan (1886)Daniel Rutherford (1772)
Named byHumphry Davy, André-Marie AmpèreJean-Antoine Chaptal (1790)
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