How to find ioms number This chemistry video tutorial provides a basic introduction on how to calculate oxidation numbers. org and *. kastatic. *IOMS Number. 02 x 10 23 and this represent the number of particles (atoms, ions, molecules or formula units) in 1 mole of a substance. The anions or molecules that are attached to the metal are referred to as ligands. This number, Avogadro's number, is 6. We would like to show you a description here but the site won’t allow us. 100093476 3) multiply the no. 8. urfygqokjixxjubxqclogbwcxdmbhyobyxaqtaprunnxetbfydcolazbhleedozidbfdlkrb