Question

Number of elements in Po4^-3​

Answer 1

Explanation:

There are 2 elements, they are Phosphorous and Oxygen in the compound PO43-

Answer 2

Answer:

P=+5

Explanation:

(I)  

x

PO  

4

3−

​  

⇒x+4×(−2)=−3

                 ⇒x=−3+8=+5

                 ⇒x=+5

Oxidation number of P=+5