Give brief answers to the following question:
State the number of atoms present in each of the following chemical species
(a). Number of atoms present \(CO_3{^2}{^-}\)
is .
(b). Number of atoms present \(PO_4{^3}{^-}\) is .
(c). Number of atoms present \(P_2O_5\)
is .
(d). Number of atoms present \(CO\) is .