Problem: What is the formal charge on phosphorus in a Lewis structure for the phosphate ion that satisfies the octet rule?

FREE Expert Solution

phosphate ion → PO43-


total valence electron

         Group             Valence Electrons

P         5A                    1 × 5 e = 5 e

O         6A                   4 × 6 e = 24 e

From –3 charge:         + 3 e

Total:  32 valence e


lewis structure



View Complete Written Solution
Problem Details

What is the formal charge on phosphorus in a Lewis structure for the phosphate ion that satisfies the octet rule?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Formal Charge concept. You can view video lessons to learn Formal Charge. Or if you need more Formal Charge practice, you can also practice Formal Charge practice problems.