Question

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

Answer 1

(d) is correct

Na -atomic number 23
electronic configuration

(1s2) (2s2 2p6) (3s1)
2 8 1

Answer 2

Hi , there :-

here is your answer :-

Na which is metal having 11 Electrons

so electronic configration is


2, 8 ,1


hence , option number D is Correct .

hope it helps you !!

thanks !!
Ranjan kumar