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) is

The hydrogen like species Li^(2+) is in a spherically symmetric state

1.	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) is
Answer» 1st 2s 2p 3s, 4d Solution :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`