Question

How many valence electrons does a sulfate (S04-2) ion contain?
30
32
24

Answer 1

30

Step-by-step explanation:

A valance electron is an electron in the outer shell. Both Sulfur and Oxygen have 6 valance electrons. Because there is 1 sulfur atom and 4 oxygen atoms in SO4, that means it is 5x6, giving 30 valance electrons.