Question

Out of 3d 4s 5p 5s which has max energy a) 5p b) 4s c) 3d d) 5s

Answer 1

Answer:

3d has maximum energy........

Answer 2

Answer:

a) Fe = [Ar]3d64s2

b) H = 1s1

c) Se = [Ar]3d104s24p4

d) O = [Ne]2s22p4