The three stable atomic isotopes of Oxygen are 16O, 17O, 18O, with 8, 9, and 10 neutrons respectively. In addition 17 radioactive isotopes have been described.
The oxide Fe2O3 has 3 oxygen atoms in the molecule.
It has 4 oxygen atoms.
If you mean this Al2(CO3)3, then 9 oxygen atoms are represented.
As indicated by the subscript on the atomic symbol for oxygen, there are 3 oxygen atoms.
One molecule of Ozone contains three oxygen atoms . It symbol is 'O3'. The three atoms are arranged in a triagular fashion. Ozone is an allotrope of oxygen, because a different number of the atoms are arranged differently.
3
The stratosphere has. It contains ozone which is 3 atoms of oxygen.
There are 3 atoms in an oxygen molecule (O2).
There are 2 atoms and 3 molecules in oxygen.
Chemical name for CaSO4 is calcium sulphate. It has 4 oxygen atoms in 1 molecule. So it has 12 oxygen atoms in 3 molecules.
6 atoms of oxygen are present. Three O2 contains 6 O atoms.
3 atoms of oxygen form ozone, the oxygen cells use is O2 with two atoms of oxygen.