Answer:
Pb (Lead) = 1 atom
N (Nitrogen) = 2 atoms
O (Oxygen) = 6 atoms
Step-by-step explanation:
Here, we want to get the number of moles of each element present in the given compound
Firstly, we list out the elements
Pb -Lead
N-Nitrogen
O-oxygen
We have 1 mole of lead clearly
For nitrogen, we multiply the subscript outside with the subscript inside. If the inner subscript is missing, we replace by 1
Thus, nitrogen has a total 2 * 1= 2 atoms
Oxygen follows same pattern as nitrogen and we have 2 * 3 = 6 atoms