Only in two hydrogen atoms electrons are excited to 4th state. What is the difference between maximum and minimum no. of spectral lines possible?
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When electron transition from nth to ground state then Σ(n−1) spectral lines are produced
fourth energy level means n = 4
Thus if electrons transiton from fourth energy level then Σ(4−1)=3+2+1=6 spectral lines are produced
Hence, the correct option is C
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Answer. The electron is excited from the ground state (n=0) to n = 4 . Visible region will be n=1 i.e, lyman series and the ultraviolet region will be n=2 i.e, balmer series.
The maximum number spectral lines possible is 4.
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