How many valence electrons in this electron configuration 1S2 2S2 2P6 3S2

Question

asked Sep 15, 2022 119k views

1 Answer

Feby · Answer 1 · 2022-09-19T10:34:00+0000

Answer:

Step-by-step explanation:

Electron Configurations

A B

Fluorine 1s2 2s2 2p5

Neon 1s2 2s2 2p6

Sodium 1s2 2s2 2p6 3s1

Magnesium 1s2 2s2 2p6 3s2