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The hydrogen like species Li^(2+) is in a spherically symmetric state S_(1) with one radial node. Upon absorbing light, the ion undergoes transition to a state S_(2). The state S_(2) has one radial node and its energy is equal to the ground state energy of the hydrogen atom The orbital angular momentum quantum number of the state S_(2) is

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Solution :As explaine above, `S_(2)` state is 3p
ORBITAL ANGULAR MOMENTUM quantum NUMBER (l) for 3p = 1


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