QJEEM22Ch95d9: JEE Main 2022 Chemistry - Class 11 JEEM22Ch95d9 Solution: When the excited electron of a H atom from n = 5 drops to the…

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When the excited electron of a H atom from n = 5 drops to the ground state, the maximum number of emission lines observed are _____________.

Accepted Answer

Maximum number of emission lines

= \frac{(n_{2} - n_{1}) (n_{2} - n_{1} + 1)}{2}

\begin{aligned} n_{2} = 5 \\ n_{1} = 1 \\ \Rightarrow \frac{(5 - 1) (5 - 1 + 1)}{2} = 10 \end{aligned}

Hence maximum number of emission lines observed are

10 .

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