Input interpretation
group 7 elements | first ionization energy
Results
manganese | 717.3 kJ/mol (kilojoules per mole) technetium | 702 kJ/mol (kilojoules per mole) rhenium | 760 kJ/mol (kilojoules per mole) bohrium | (data not available)
group 7 elements | first ionization energy | 717.3 kJ/mol (kilojoules per mole) (median) (based on 3 values; 1 unavailable)
Ranked values
| | visual | ratios | 3 | technetium | | 0.92 | 1 2 | manganese | | 0.94 | 1.02 1 | rhenium | | 1 | 1.08
Plot
Plot
Periodic table location
Periodic table location
Unit conversions for median first ionization energy 717.3 kJ/mol
0.7173 MJ/mol (megajoules per mole)
717300 J/mol (joules per mole)
171.4 kcal/mol (thermochemical kilocalories per mole)
7.434 eV (molar electronvolts)
Comparisons for median first ionization energy 717.3 kJ/mol
≈ 0.3 × molar energy required to remove the first electron from helium ( 2372 kJ/mol )
≈ 1.9 × molar energy required to remove the first electron from cesium ( 377 kJ/mol )