Question

What is the electron configuration for the first excited state of Argon?

Answer 1

Electron configuration [Ne] 3s2 3p6

Answer 2

saratchandra:Thats ground state. First excited state is [Ne} 3s2 3p5 4s1

Answer 3

im confused. usually u take the electron from the lowest energy shell, so how come you don't take it from 3s2? :/

Answer 4

no you take it from the highest energy state in the valence shell.(Otherwise ou would remove 1s for all)

Answer 5

oh okay thanks!!