The order of screeening effect of electorns of s, p, d and f orbitals fo a given shell of an atom on its outer shell electrons is
(a) s > P> d> f (b) f> d> p>s (c) p < d< s> f (d) f>p>s>d
Answer: (a) s > p > d > f
For the same shell, screening effect decreases in the order s > p > d > f