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Electrons in the H-atoms jumps from some...

Electrons in the H-atoms jumps from some higher level to 3rd energy level . If six spectral lines are possible for the transition find the initial position of electron.

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The correct Answer is:
6
`x+e^(-) rarr x^(-)`
energy released =`E.A_(1)+E.A_(2)=30.87 eV//atom`
Let no. of moles of `X` be a
`:. axxN_(a)xx30.87=6xxN_(a)xx4.526+6xxN_(a)xx13.6+6xxN_(a)xx12.75 rArr a=6 `moles
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