Question

Which of the following electronic configurations are not possible? Give reasons.
(a) X = 2,8,4
(b) Y = 3,8,2
(c) Z = 2, 8,9

Answer 1

Answer:

Y=(b),of the electronic configuration are not possible

Answer 2

Explanation:

Y = 3 ;8;2

Is not possible because in first orbital only 2 electron are present