Question 364: Atoms & Nuclei

Question

A electron of hydrogen atom on an excited state is having energy $$\mathrm{E}_{\mathrm{n}}=-0.85 \mathrm{~eV}$$. The maximum number of allowed transitions to lower energy level is _________.

Accepted Answer

$$\begin{aligned}
& E_n=-\frac{13.6}{n^2}=-0.85 \
& \Rightarrow n=4
\end{aligned}$$
No of transition
$$=\frac{n(n-1)}{2}=\frac{4(4-1)}{2}=6$$

Atoms & Nuclei

A electron of hydrogen atom on an excited state is having energy $\mathrm{E}_{\mathrm{n}}=-0.85 \mathrm{~eV}$. The maximum number of allowed transitions to lower energy level is _________.

Choose the correct answer: