Question

what are the factors that govern ionization energy of an element​

Answer 1

Answer:

Factors Affecting Ionisation Energy

• Size of the positive nuclear charge. As the nuclear charge increases, its attraction for the outermost electron increases and more energy is required to remove an electron. ...
• Size of atom (distance of outermost electron from the nucleus) ...
• Screening (shielding) effect of inner shell electrons.

Answer 2

3 Factors Affecting Ionisation Energy

Size of the positive nuclear charge. As the nuclear charge increases, its attraction for the outermost electron increases and more energy is required to remove an electron.

Size of atom (distance of outermost electron from the nucleus)

Screening (shielding) effect of inner shell electrons.