InterviewSolution
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InterviewSolution
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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 state `S_(1)` isA. 1stB. 2sC. 2pD. 3s, 4d |
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Answer» Correct Answer - B The state `S_(1)` must be 2s (as it has one radial node) and it must have jumped to 3p (which again has one radial node and energy equal to that of ground state H-atom as `E_(H (Is)) = - 13.6 eV` `E_(Li^(2+) (3p)) = (-13.6 Z^(2))/(n^(2)) = - (13.6 xx 3^(2))/(3^(2))` `= -13.6 eV` |
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