Question

Which of the following has six electrons in its valence shell?

oxygen
nitrogen
sodium
neon

Answer 1

Oxygen has the 6 valence shell
its on the periodic table
if it has 2 above count from 1-8 I believe so its H-1 Be-2 B-3 C-4 N-5 O-6

Answer 2

Simple...

moving along the periodic table ---->>>

Oxygen has 6.

Nitrogen has 5.

Sodium has 1.

Neon has 8.

Thus, your answer, Oxygen.