Sulfite ion, SO32-

Step 2. Count valence electrons

S = 6

3 x O = 3 x 6 = 18

Negative charge = 2

TOTAL = 6 + 18 + 2 = 26 e-

or 13 pairs

Step 1. Central atom = S

10 pairs of electrons are left.

Step 3. Form sigma bonds

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