[tex]PO_4^{3-}[/tex] is a polyatomic ion. Hence, option D is correct.
What is a polyatomic ion?
Polyatomic ions are ions which consist of more than one atom.
The prefix poly- means many, so a polyatomic ion is an ion that contains more than one atom. This differentiates polyatomic ions from monatomic ions, which contain only one atom.
[tex]PO_4^{3-}[/tex] is a chemical derivative of phosphoric acid with a chemical name Phosphate. Phosphate is also called Phosphate ion or Orthophosphate.
Learn more about the polyatomic ion here:
https://brainly.com/question/13659069
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