Question 267: Atoms & Nuclei

Question

Energy required for the electron excitation in $L{i^{ +  + }}$ from the first to the third Bohr orbit is :

Accepted Answer

Energy of excitation,
$\Delta E = 13.6\,{Z^2}\left( {{1 \over {n_1^2}} - {1 \over {n_2^2}}} \right)eV$
$ \Rightarrow \Delta E = 13.6{\left( 3 \right)^2}\left( {{1 \over {{1^2}}} - {1 \over {{3^2}}}} \right) = 108.8\,eV$

Answer

$36.3$ $eV$

Answer

$108.8$ $eV$

Answer

$122.4$ $eV$

Answer

$12.1$ $eV$

Atoms & Nuclei

Energy required for the electron excitation in L{i^{ + + }} from the first to the third Bohr orbit is :

Choose the correct answer: