Input interpretation
noble gases | first ionization energy
Summary
median | 1435.7 kJ/mol highest | 2372.3 kJ/mol (helium) lowest | 1037 kJ/mol (radon) distribution | | (based on 6 values; 1 unavailable)
Entity with missing value
oganesson
Ranked values
| | visual | ratios | 6 | radon | | 0.4371 | 1 5 | xenon | | 0.49336 | 1.129 4 | krypton | | 0.5694 | 1.303 3 | argon | | 0.641 | 1.466 2 | neon | | 0.8771 | 2.006 1 | helium | | 1 | 2.288
Plot
Plot
Periodic table location
Periodic table location
First ionization energy rankings
1 | radon | 1037 kJ/mol 2 | xenon | 1170.4 kJ/mol 3 | krypton | 1350.8 kJ/mol 4 | argon | 1520.6 kJ/mol 5 | neon | 2080.7 kJ/mol 6 | helium | 2372.3 kJ/mol (based on 6 values; 1 unavailable)
Unit conversions for median first ionization energy 1435.7 kJ/mol
1.4357 MJ/mol (megajoules per mole)
1.4357×10^6 J/mol (joules per mole)
343.14 kcal/mol (thermochemical kilocalories per mole)
14.88 eV (molar electronvolts)
Comparisons for median first ionization energy 1435.7 kJ/mol
≈ 0.61 × molar energy required to remove the first electron from helium ( 2372 kJ/mol )
≈ 3.8 × molar energy required to remove the first electron from cesium ( 377 kJ/mol )