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 energyis equal to the ground state energyof 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 energyis equal to the ground state energyof the hydrogen atom. The state S_1 is
Answer» 2p 2S 1s 3s Solution :for lower state `(S_1)` No. of radial NODE = 1=n-l-1 PUT n=2 and l=0 (as HIGHER state `S_2` has n=3) So, it would be 2s (for `S_1` state)