The category the ion PO43- belong to polyatomic anion. The correct option among all the options that are given in the question is the third option or option "C". It is anion because the charge is negative. I hope that this is the answer that you were looking for and the answer has actually come to your help.
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< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >
Answer from: Quest
Noble gases is far right
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