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The frequency of one of the lines in Paschen series of hydrogen atom is2.340x1011Hz. The quantum number n2 which produces this transition is:
(1) 6
(2) 5
(3) 4
(4) 3
Ans: 5
The configuration 1s 2 2s 2 2p 5 3s 1 shows: (1) Ground state of fluorine atom (2) Excited state of fluorine atom (3) Excited state of neon atom (4) Excited state
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