Question

Magnesium belongs to group 2, and it has 12 protons. The valence electrons of magnesium is
a. 12
b. 2
c. 14

Answer 1

Answer:

b.2

Explanation:

Since magnesium has 12 protons, it also has 12 electrons.

electronic configuration of magnesium - 2,8,2

thus the valence electrons would be 2