which of the following elements have seven valance electrons in its outer shell?

a. hydrogen
b. fluorine
c. magnesium
d. oxygen

which of the following elements have seven valance electrons in its outer shell a hydrogen b fluorine c magnesium d oxygen class=

Respuesta :

Answer:

Flourine

Explanation:

Its at the 17 group number which are where the halogens are located.

Answer:answer in explanation

Explanation:

Easy fluorine