Question

How many atoms of each element are in the chemical formula P2O5?

2 phosphorus and 5 oxygen
5 phosphorus and 2 oxygen
1 phosphorus and 5 oxygen
2 phosphorus and 1 oxygen
the answer is the last one

Answer 1

2 phosphorus and 5 oxygen

Answer 2

2 phosphorus and 5 oxygen

Step-by-step explanation:

The chemical formula of the substance is:

`P_2 O_5`

where each subscripts indicates the number of atoms of each element. We see that P (phosphorus) has a subscript '2' while O (oxigen) has a subscript '5', so the correct answer is

2 phosphorus and 5 oxygen