\({E_n}\,\, = \,\, - \left( {\frac{{m{e^4}}}{{8 \in _0^2\,\,{h^2}}}} \right)\,\,\frac{{{z^2}}}{{{n^2}}}\)

ઉપરના સમીકરણની જમણી બાજુએ \(hc\) વડે ગુણતાં અને ભાગતાં

\( = \,\, - \,\,\left( {\frac{{m{e^4}}}{{8\, \in _0^2\,\,{h^3}c}}} \right)\,\,hc\,\,\frac{{{z^2}}}{{{n^2}}}\,\, = \,\, - Rch\,\,\frac{{{z^2}}}{{{n^2}}}\)

\(\therefore\) \(Li^{++}\)  આયનની આયનીકરણ ઊર્જા,

\(E\)(આયનીકરણ )\( = \,\, + \,\,Rch\,\,\frac{{{{\left( 3 \right)}^2}}}{{{{\left( 1 \right)}^2}}}\,\, = \,\,9\,\,hcR\)