How Many Atoms Are Present In PO 43 Minus Ion? $PO_4^{3 – }$ ion has one atom of phosphorus and four atoms of oxygen, so the number of atoms in this molecule is 1+ 4 = 5. How many atoms are present in H2S molecule and PO 43 minus ions? How many atoms are present
How Many Possible Molecules Are There? According to the Chemical Abstracts Service, CAS REGISTRY (SM) contains more than 90 million unique organic and inorganic chemical substances, such as alloys, coordination compounds, minerals, mixtures, polymers and salts, and more than 65 million sequences—more than any other database of its kind. How many molecules are in the