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Compare Aluminium vs Nihonium

Comparing Aluminium (Al) and Nihonium (Nh). Atomic numbers 13 and 113 with atomic masses 26.982 u and 286 u, classified as post-transition metal and unknown. 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
Al
Aluminium
#13
Nh
Nihonium
#113

Periodic properties of the elements

AluminiumNihonium
SymbolAlNh
Atomic number13113
Group1313
Period37
Blockpp
Element categoryPost-Transition MetalUnknown

Physical properties

AluminiumNihonium
Phase at STPSolidSolid
Density2.7 g/cm316 g/cm3
Atomic weight26.9815 u286 u
Melting point933.47 K
660.32 °C
1220.576 °F		700 K
426.85 °C
800.33 °F
Boiling point2743 K
2469.85 °C
4477.73 °F		1430 K
1156.85 °C
2114.33 °F

Atomic properties

AluminiumNihonium
Electronegativity (Pauling Scale)1.610
Electron affinity41.762 kJ/mol66.6 kJ/mol
Oxidation states−2, −1, +1, +2, +3
(an amphoteric oxide)		(−1), (+1), (+3), (+5)
(predicted)
Ionization energies
  1. 577.5 kJ/mol
  2. 1816.7 kJ/mol
  3. 2744.8 kJ/mol
  4. 11577 kJ/mol
  5. 14842 kJ/mol
  6. 18379 kJ/mol
  7. 23326 kJ/mol
  8. 27465 kJ/mol
  9. 31853 kJ/mol
  10. 38473 kJ/mol
  11. 42647 kJ/mol
  12. 201266 kJ/mol
  13. 222316 kJ/mol
  1. 704.9 kJ/mol
  2. 2238.5 kJ/mol
  3. 3023.3 kJ/mol
  4. 4351.5 kJ/mol
  5. 5692.6 kJ/mol

Electron configuration

AluminiumNihonium
Shorthand configuration[Ne] 3s2 3p1 [Rn] 5f14 6d10 7s2 7p1
Full configuration1s2 2s2 2p6 3s2 3p1 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p1
Electrons per shell2, 8, 32, 8, 18, 32, 32, 18, 3

History

AluminiumNihonium
PredictionAntoine Lavoisier (1782)
DiscoveryHans Christian Ørsted (1824)RIKEN (2003)
Named byHumphry Davy (1812)RIKEN
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