Give me the number of valence electrons for so4 2-

The answer to this question would be: 32

To answer this question, you need to know the valence of sulfur (S) and oxygen (O) atom. Both sulfur and oxygen have 6 valences electron. In the molecule, there are 1 sulfur and 4 oxygen, then the calculation should be:

sulfur : 1 * 6 = 6

oxygen:4 * 6 = 24

charge (-2) = 2

total = 6+24+2=32