Two atoms of element ‘M’ combine with 3 atoms of oxygen.
∴ Number of oxygen atoms combining with one atom of element ‘M’ =3\over2
Therefore, the valency of element ‘M’ = 3\over2 x 2= 3
Question
An atom ‘M’ of an element reacts wit oxygen to from M2O3. Calculate the valency of the element ‘M’.
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