Question

define ionisation energy. how is it related to the metallic character?

Answer 1

1. The energy required for a gaseous atom to gain stability when it loses an electron is called ionisation energy for that atom.

2. Metals have tendency to loose the valence electrons easily to attain stable noble gas configuration, thus, ionisation energy is for them is less as they very easily loose electron.

3. High metallic character always have low ionisation energy.