Question

What is mean by ionization energy?

Answer 1

IONIZATION ENERGY

• It is defined as the minimum energy required to remove an electron from a gaseous atom in its ground state.

• It is measured in K.Jole /mole or electron volt (ev)per atom.

• It depends upon atomic size and nuclear charge.

Answer 2

The energy required to remove an electron from the outermost orbit or shell of neutral gaseous atom is called ionization energy.