Which of the following is a correct electronic configuration of sodium?
(a) 2, 8 (b) 8, 2, 1

(c) 2, 1, 8 (d) 2, 8,1

Question

Which of the following is a correct electronic configuration of sodium? (a) 2, 8 (b) 8, 2, 1 (c) 2, 1, 8 (d) 2, 8,1

Philoid · Accepted Answer

(d) 2, 8, 1

Atomic number of sodium is 11. Its electronic configuration is K shell- 2, L shell- 8 and m shell- 1. It has 1 electron in its valence shell.

Which of the following is a correct electronic configuration of sodium?(a) 2, 8 (b) 8, 2, 1(c) 2, 1, 8 (d) 2, 8,1