hi please help. thankyouuu :] 1. The problem statement, all variables and given/known data i am studying for my apchem exam in may.and got stuckup on a question. it's just a little exercise.so the answers aren't there.but ok here it is; give the resonance structures of PO4 (3-) and there's supposed to be four 2. Relevant equations none? 3. The attempt at a solution i started drawing it so.. PO4 (3-) = 5 + (6*4) +3 = 32/2 = 16 pairs of electrons so... O | O -- P --- O | O so there's the single bonds (8 electrons: octet rule) for P and then 6 electrons around each O to complete O's octet rule. and my problem is...where's the dang resonance structure? because everyone gets their electrons.and is happy. unless of course P has an expanded octet and gets more than 8? i don't know. please help me. thankuuuu 'ppreciate it alottttt.