Which of the following electronic transitions in hydrogen atom will require the highest energy?
Which of the following electronic transitions in hydrogen atom will require the highest energy?
$\mathrm{n}=4$ to $\mathrm{n}=5$
$\mathrm{n}=1$ to $\mathrm{n}=2$
$\mathrm{n}=3$ to $\mathrm{n}=5$
$\mathrm{n}=2$ to $\mathrm{n}=3$
Solution
A transition from ground state or a state that has the electron closest to the nucleus, will require the highest amount of energy.
Thus, $\mathrm{n}=1 \rightarrow \mathrm{n}=2$ requires the highest energy.