Question

H. Define ionization energy. Name the
factors on which ionisation energy
depends? How does it vary down the
group and across a period?​

Answer 1

Answer:

the minimum amount of energy required to remove an electron from the outermost shell of a gaseous neutral isolated atom.

Explanation:

factors are atomic size, screening effect,effective nuclear charge , penetration power, half or full filled orbitals. ionization energy decreases in a group and increases in a period