The hydrogen -like species ` Li^(2+)` is in a spherically symmetric state ` S_1` whth one radisal node . Upon absorbing light the ion undergoes transitoj ot a state ` S_2` has one radial node and its enrgy is equal to the groun sate energy of hhe hydrogen atom. The orbital angular momentum quantum number of the state ` s_2` is :A. 2B. 1C. 0D. 3

The hydrogen -like species ` Li^(2+)` is in a spherically symmetric st

1.	The hydrogen -like species ` Li^(2+)` is in a spherically symmetric state ` S_1` whth one radisal node . Upon absorbing light the ion undergoes transitoj ot a state ` S_2` has one radial node and its enrgy is equal to the groun sate energy of hhe hydrogen atom. The orbital angular momentum quantum number of the state ` s_2` is :A. 2B. 1C. 0D. 3
Answer» Correct Answer - B For state `S_2` No. of radial node =1-n-l-1 …(i) Energy of `S_2` state=energy of `e^-` in lowest state of H-atom =-13.6 eV/atom =`-13.6 (3^2/n^2)` eV/atom n=3 Put in equation (i), l =1 so , orbital `rArr` 3p (for `S_2` state).

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