Ionisation energies

Successive ionisation energies are a proof for the existence of the shells in atoms.

First ionisation energy- is the energy required to remove one electron from each atom in one mole of gaseous atoms to form one mole of gaseous 1+ ions.

M(g) ---> M+ (g) + e- 

Successive ionisation energies- are a measure of the energy required to remove each electron in turn.

There are 3…