Question 313: 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: