Chemistry | TS EAMCET 2017 | Discussion Page

How many emission spectral lines are possible when a hydrogen atom is excited to nth energy level?

$\frac{n(n+1)}{2}$

$\frac{(n+1)}{2}$

$\frac{(n-1)n}{2}$

$\frac{n^{2}}{4}$

Option C

number of spectral lines= $\frac{n(n-1)}{2}$

n is the oribital in which the electron exist

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