Respuesta :

Answer:

6 valence electrons

Explanation:

Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell.

plantsupremacy
6 valance electrons are in oxygen because it is in group 16 n 16-10=6