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Emission and Absorption Spectra

Which electro...

Question

Which electron transition produces light of the highest frequency in the hydrogen atom?

5 p

2 s

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4 p

2 s

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3 p

2 s

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2 p

2 s

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Solution

The correct option is B $5 p$ to $2 s$
Electron transition that produces light of the highest frequency in the hydrogen atom from $n_{1}$ to $n_{2}$ state is given by
$Δ E = - R Z^{2} (1 / n_{2}^{2} - 1 / n_{1}^{2})$ where $(n_{1} - n_{2})$ is maximum
thus, maximum energy difference is in between $2 s$ and $5 p$ . Therefore this transition will give highest frequency light.
option A is correct

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