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Standard XII
Chemistry
Uses of Lanthanides
36 Structure ...
Question
36 Structure of Atom14. Number of spectral line in Balmer series when an23electron return from 7th orbit to 1st orbit of hydrogenatom are(1) 5(2) 6(3) 21(4) 8
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Q.
Number of spectral lines in Balmer series when an electron return from
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