yes it is. It is made up of 2 elements that have a charge so it is polyatomic
Sources:
My textbook
An anion. For which element, I am not sure. Let someone else answer that.
sodium phosphate Na3PO4
what is the oxidation number for phosphate
It is an ionic compound composed of positively charged sodium ions and a negatively charged phosphate ion.
ionic bond between aluminium cation and phosphate anion
Phosphate (PO43-) is a polyatomic anion. The way to tell this is to look at the charge - an anion has a negative charge and a cation has a positive charge.
Phosphate is a triply charged polyatomic anion.
An anion. For which element, I am not sure. Let someone else answer that.
No; a polyatomic ion is like Carbonate (CO3) or Phosphate (PO4) and others.
sodium phosphate Na3PO4
Those are chemical formulas. NH4 is the ammonium polyatomic ion, and PO4 is the phosphate polyatomic ion. Ammonium has a +1 charge and phosphate has a -3 charge.
Potassium hydrogen phosphate. K= potassium HPO4 = the polyatomic
In even moderately strong acid conditions in aqueous solution, a polyatomic phosphate ion with a charge of -3 will add an hydrogen ion with a charge of +1 to form a polyatomic acid phosphate anion with a charge of -2. In equation form, PO4-3 + H+1 -> HPO4-2.
That compound is called rubidium phosphate.
Carbonate sulphate sulphite phosphate phosphite tetraphenylborate hexafluorophosphate
Polyatomic ion
Polyatomic ion