Question

1. which one 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 ​

Answer 1

Answer:

2,8,1 is the correct answer for sodium

Answer 2

Answer:

d

Explanation:

the atomic no. of sodium is 11

therefore, its electronic configuration is (2,8,1)