Which excited state element could have an electron configuration of #1s^2 2s^2 2p^6 3s^2 3p^4 4s^1#?
1 Answer
Jan 12, 2016
The element is chlorine.
Explanation:
The element is "excited", so it still has all its electrons.
The element contains 17 electrons.
It must be element with atomic number 17: chlorine.
