Question

What are the parts of an electron configuration: 1s22s22p63s2 ?

1,2,3 = shell?
s, p =
2,2,6,2 =

Answer 1

Step-by-step explanation:

electronic confirmation=1s^2,2S^2,2P^6,3S^2

atomic no.is 12 therefore :- this is magnesium

Period=3

Block=s-block

Group=II A