Input interpretation
chlorine | first ionization energy
Result
1251.2 kJ/mol (kilojoules per mole)
Periodic table location
Periodic table location
Unit conversions
1.2512 MJ/mol (megajoules per mole)
1.2512×10^6 J/mol (joules per mole)
299.04 kcal/mol (thermochemical kilocalories per mole)
12.968 eV (molar electronvolts)
Comparisons as molar ionization energy
≈ 0.53 × molar energy required to remove the first electron from helium ( 2372 kJ/mol )
≈ 3.3 × molar energy required to remove the first electron from cesium ( 377 kJ/mol )