Menu
Other Resources

Compare Fluorine vs Neon

Comparing Fluorine (F) and Neon (Ne). Atomic numbers 9 and 10 with atomic masses 18.998 u and 20.18 u, classified as nonmetal and noble gas. 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
Ne
Neon
#10

Periodic properties of the elements

FluorineNeon
SymbolFNe
Atomic number910
Group1718
Period22
Blockpp
Element categoryNonmetalNoble Gas

Physical properties

FluorineNeon
Phase at STPGasGas
Density1.696 g/cm30.9002 g/cm3
Atomic weight18.9984 u20.1797 u
Melting point53.48 K
-219.67 °C
-363.406 °F		24.56 K
-248.59 °C
-415.462 °F
Boiling point85.03 K
-188.12 °C
-306.616 °F		27.104 K
-246.046 °C
-410.8828 °F

Atomic properties

FluorineNeon
Electronegativity (Pauling Scale)3.980
Electron affinity328.165 kJ/mol-116 kJ/mol
Oxidation states−1, 0
(oxidizes oxygen)		0
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. 2080.7 kJ/mol
  2. 3952.3 kJ/mol
  3. 6122 kJ/mol
  4. 9371 kJ/mol
  5. 12177 kJ/mol
  6. 15238 kJ/mol
  7. 19999 kJ/mol
  8. 23069.5 kJ/mol
  9. 115379.5 kJ/mol
  10. 131432 kJ/mol

Electron configuration

FluorineNeon
Shorthand configuration[He] 2s2 2p5 [He] 2s2 2p6
Full configuration1s2 2s2 2p5 1s2 2s2 2p6
Electrons per shell2, 72, 8

History

FluorineNeon
PredictionWilliam Ramsay (1897)
DiscoveryAndré-Marie Ampère (1810)William Ramsay, Morris Travers (1898)
First isolationHenri Moissan (1886)William Ramsay, Morris Travers (1898)
Named byHumphry Davy, André-Marie Ampère
Compare Fluorine with
Compare Neon with