Question

write down the electronic configuration of sodium atom and chlorine atom

Answer 1

Hi friend!!

Electronic configuration of Sodium (Na) atom whose atomic number =11 :-

K shell - 2
L shell - 8
M shell - 1

Electronic configuration of Chlorine (Cl) atom whose atomic number =17

K shell - 2
L shell - 8
M shell -7

Answer 2

the atomic number of sodium is 11 .
so, the electronic configuration of sodium atom will be :
K L M or 2, 8 , 1
2,8,1