Question

$I_1$ and $I_2$ of an element are $700$ and $1200kJmo{l}^{-1}$. If $1000kJmo{l}^{-1}$ energy is supplied to the gaseous atomic element and the ionisations occurs in succession, find the ratio of monovalent and divalent cations.

Answer 1

Only first ionisation can occur$,$ since energy supplied is less than second ionization. So$,$ there will be $100\%$ of monovalent cation and $0\%$ divalent cation$.$