The oxidation state of P in PO4 can be calculated as under. PO4 has 3- charge on it.

Secondly, what is the oxidation state of an individual phosphorus atom in Po 3 3 −? The oxidation state of P in PO33– is 3.

Then, how do you find the oxidation number of phosphorus?

Letting x be the oxidation number of phosphorus, 0= 3( 1) x 3(-2). x=oxidation number of P= 3. Hydrogen and oxygen have oxidation numbers of 1 and -2. The ion has a charge of -1, so the sum of the oxidation numbers must be -1.

What is the oxidation number for phosphorus in na2hpo3?

The oxidation number of the phosphorus is 3. We know that hydrogen ions have a 1 oxidation number and oxygen ions have a -2 oxidation number.