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Compare Zinc vs Iron

Comparing Zinc (Zn) and Iron (Fe). Atomic numbers 30 and 26 with atomic masses 65.382 u and 55.845 u, classified as transition metal and transition metal. 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
Zn
Zinc
#30
Fe
Iron
#26

Periodic properties of the elements

ZincIron
SymbolZnFe
Atomic number3026
Group128
Period44
Blockdd
Element categoryTransition MetalTransition Metal

Physical properties

ZincIron
Phase at STPSolidSolid
Density7.14 g/cm37.874 g/cm3
Atomic weight65.382 u55.8452 u
Melting point692.68 K
419.53 °C
787.154 °F		1811 K
1537.85 °C
2800.13 °F
Boiling point1180 K
906.85 °C
1664.33 °F		3134 K
2860.85 °C
5181.53 °F

Atomic properties

ZincIron
Electronegativity (Pauling Scale)1.651.83
Electron affinity-58 kJ/mol14.785 kJ/mol
Oxidation states−2, 0, +1, +2
(an amphoteric oxide)		−4, −2, −1, 0, +1, +2, +3, +4, +5, +6, +7
(an amphoteric oxide)
Ionization energies
  1. 906.4 kJ/mol
  2. 1733.3 kJ/mol
  3. 3833 kJ/mol
  4. 5731 kJ/mol
  5. 7970 kJ/mol
  6. 10400 kJ/mol
  7. 12900 kJ/mol
  8. 16800 kJ/mol
  9. 19600 kJ/mol
  10. 23000 kJ/mol
  11. 26400 kJ/mol
  12. 29990 kJ/mol
  13. 40490 kJ/mol
  14. 43800 kJ/mol
  15. 47300 kJ/mol
  16. 52300 kJ/mol
  17. 55900 kJ/mol
  18. 59700 kJ/mol
  19. 67300 kJ/mol
  20. 71200 kJ/mol
  21. 179100 kJ/mol
  1. 762.5 kJ/mol
  2. 1561.9 kJ/mol
  3. 2957 kJ/mol
  4. 5290 kJ/mol
  5. 7240 kJ/mol
  6. 9560 kJ/mol
  7. 12060 kJ/mol
  8. 14580 kJ/mol
  9. 22540 kJ/mol
  10. 25290 kJ/mol
  11. 28000 kJ/mol
  12. 31920 kJ/mol
  13. 34830 kJ/mol
  14. 37840 kJ/mol
  15. 44100 kJ/mol
  16. 47206 kJ/mol
  17. 122200 kJ/mol
  18. 131000 kJ/mol
  19. 140500 kJ/mol
  20. 152600 kJ/mol
  21. 163000 kJ/mol
  22. 173600 kJ/mol
  23. 188100 kJ/mol
  24. 195200 kJ/mol
  25. 851800 kJ/mol
  26. 895161 kJ/mol

Electron configuration

ZincIron
Shorthand configuration[Ar] 3d10 4s2 [Ar] 3d6 4s2
Full configuration1s2 2s2 2p6 3s2 3p6 3d10 4s2 1s2 2s2 2p6 3s2 3p6 3d6 4s2
Electrons per shell2, 8, 18, 22, 8, 14, 2

History

ZincIron
DiscoveryIndian metallurgists (1000 BC)Middle East (5000 BC)
First isolationAndreas Sigismund Marggraf (1746)
Named byParacelsus
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