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When an electrons comes back from fifth orbit to ground state of Hydrogen atom the total number of spectral lines and lines in UV regions are?

When an electrons comes back from fifth orbit to ground state of Hydrogen atom the total number of spectral lines and lines in UV regions are?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60796 Points
one year ago
Answer :

Number of visible lines when an electron returns from 5th orbit to the ground state in the H spectrum is 10.

The number of spectral lines =

2

n(n−1)

.

The number of spectral lines =

2

5(5−1)

=10.

These lines belong to the UV region.

Note: Lyman series corresponds to transitions to n=1 level.

Thanks

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