Input interpretation
ferromagnetic elements | first ionization energy
Results
cobalt | 760.4 kJ/mol (kilojoules per mole) gadolinium | 593.4 kJ/mol (kilojoules per mole) iron | 762.5 kJ/mol (kilojoules per mole) nickel | 737.1 kJ/mol (kilojoules per mole)
ferromagnetic elements | first ionization energy | 748.7 kJ/mol (kilojoules per mole) (median)
Ranked values
| | visual | ratios | 4 | gadolinium | | 0.778 | 1 3 | nickel | | 0.967 | 1.242 2 | cobalt | | 0.997 | 1.281 1 | iron | | 1 | 1.285
Plot
Plot
Periodic table location
Periodic table location
Unit conversions for median first ionization energy 748.7 kJ/mol
0.7487 MJ/mol (megajoules per mole)
748700 J/mol (joules per mole)
179 kcal/mol (thermochemical kilocalories per mole)
7.76 eV (molar electronvolts)
Comparisons for median first ionization energy 748.7 kJ/mol
≈ 0.32 × molar energy required to remove the first electron from helium ( 2372 kJ/mol )
≈ 2 × molar energy required to remove the first electron from cesium ( 377 kJ/mol )