The amount of energy required to remove the electron from a `Li^(+2)` ion in its ground state is x times that of the amount of energy required to remove the electron from an H-atom in its ground state find .x.

Answer

9

Explanation

`Li^(+2) : (-2^2)/(n^2) (13.6 eV) = 13.6 xx 9 =9 ` (H. atom)