wen determining the formula for a compound its important to no the valance no of each element suppose element a has a valance no of 3 an element b has a valence no of 2 if the two elements combine then wen writing the formula for the resulting compound wat subscript no will be give to element b 1 2 3 or 5
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The formula will be A2B3, where A and B represent to two elements. B will have subscript 3.
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