Question

2 Caz (PO4)2
How many phosphorus atoms are there in the
picture?

Answer 1

4 phosphorus

Step-by-step explanation:

The given compound is:

2Ca₃(PO₄)₂

We have been given 2 moles of Ca₃(PO₄)₂ . The number of atoms is the same as the number of elements present within the compound. Since this is 2 moles, we multiply every number of atoms by 2;

2Ca₃(PO₄)₂

Ca : 2 x 3 = 6 atoms

P : 2 x 2 = 4 atoms

O: 2 x (2 x 4) = 16 atoms

So we have 4 phosphorus atoms