The number of spectral lines that are possible when electrons in 7th shell in different hydrogen atoms return to the second shell is: - Study24x7
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02 May 2020 08:48 PM study24x7 study24x7

The number of spectral lines that are possible when electrons in 7th shell in different hydrogen atoms return to the second shell is:

A

12

B

15

C

14

D

10

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