It is the amount of energy required to pull out the electron from the outermost orbit of an atom.
Sodium's first ionization energy is 495 kJ / mol.
Fluorine has the largest first ionization energy among the halogens.
Fluorine has the largest first ionization energy among the halogens.
Helium has the highest ionization energy.
The first ionization energy is 1681 kJ/mol.
The first ionization energy for carbon is 1 086,5 kJ/mol. The first ionization energy for oxygen is 1 319,9 kJ/mol.
When electronegativity decrease the first ionization energy also decrease.
The ionization energy (first) of einsteinium is 619 kJ/mol.
The first ionization energy of germanium is 7.9 electron volts (eV).
The first ionization energy of neon is higher: 2 080,7 kJ/mol.
Across a row on the periodic table ionization energy increases. Down a column, ionization energy decreases. --------------------------------------------------------- The first Ionization energy of Boron is 800.6 kJ mol-1
The estimated first ionization energy of mendelevium is 635 kJ/mol.