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Compare Neon vs Oganesson

Comparing Neon (Ne) and Oganesson (Og). Atomic numbers 10 and 118 with atomic masses 20.18 u and 294 u, classified as noble gas 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
Ne
Neon
#10
Og
Oganesson
#118

Periodic properties of the elements

NeonOganesson
SymbolNeOg
Atomic number10118
Group1818
Period27
Blockpp
Element categoryNoble GasNoble Gas

Physical properties

NeonOganesson
Phase at STPGasSolid
Density0.9002 g/cm34.95 g/cm3
Atomic weight20.1797 u294 u
Melting point24.56 K
-248.59 °C
-415.462 °F		-
Boiling point27.104 K
-246.046 °C
-410.8828 °F		350 K
76.85 °C
170.33 °F

Atomic properties

NeonOganesson
Electronegativity (Pauling Scale)00
Electron affinity-116 kJ/mol5.40318 kJ/mol
Oxidation states0−1), (0), (+1), (+2), (+4), (+6)
(predicted)
Ionization energies
  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
  1. 860.1 kJ/mol
  2. 1560 kJ/mol

Electron configuration

NeonOganesson
Shorthand configuration[He] 2s2 2p6 [Rn] 5f14 6d10 7s2 7p6
Full configuration1s2 2s2 2p6 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p6
Electrons per shell2, 82, 8, 18, 32, 32, 18, 8

History

NeonOganesson
PredictionWilliam Ramsay (1897)
DiscoveryWilliam Ramsay, Morris Travers (1898)Joint Institute for Nuclear Research, Lawrence Livermore National Laboratory (2002)
First isolationWilliam Ramsay, Morris Travers (1898)
Named byJINR, LLNL
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