Question

Which atoms are indicated by the following configurations ? 
(a) {He}2s^1 (B) {Ne}3s^2 3p^4
(C) {Ar}4s^2 3d^1


(a) Li, (b) P (c) Sc
(a) Nai, (b) P (c) Sc
(a) Li, (b) N (c) Sc
(a) Li, (b) P (c) K


please give right answer​

Answer 1

Answer:

The electronic configuration of Helium is [He] 2s1 = 1s2 2s1. The electronic configuration of Neon is [Ne] 3s2 3p3 = 1s2 2s2 2p6 3s2 3p3. The electronic configuration of Argon is given as [Ar] 4s2 3d1 = 1s2 2s2 2p6 3s2 3p6 4s2 3d1.