The electrons identified by quantum numbers n and l :-
(a) n=4, l=1 (b) n=4, l=0 (c ) n=3, l=2 (d) n=3, l=1
Can be placed in order of increasing energy as

The electrons identified by quantum numbers n and l : (a) n=5, l=1 , (b) n=5, l=0 (c ) n=4, l=2 , (d) n=4, l=1 can be placed in order of increasing energy as :

The elctron identified by quantum numbers n and l (i) n=4,l=1 (ii) n=4,l=0 (iii) n=3,l=0 (iv) n=3,l=1 can be placed in order of increasing energy

The electronic, identified by quantum numbers n and l, (i) n = 4, l = 1 , (ii) n = 4, l = 0 , (iii) n = 3,l = 2 , (iv) n = 3, l = 1 can be placed in order of increasing energy, from the lowest to highest, as