Which element has a full valence shell of electrons?

A. Magnesium (Mg)
B. Neon (Ne)
C. Chlorine (Cl)
D. Silicon (Si)

Respuesta :

I think neon because it is all the way to the right

B.
Neon has 8 valence electrons, so it is the only one from these options that has a full valence shell of electrons.