chemistery

suppose that "element a" has a valence number of 3 and "element b" has a valence number of 2. if the two elements combine, then when writing the formula for the resulting compound what subscript number will be given to "element b"?

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  1. If both are positive, they may not combine at all.
    A = +3
    B = -2
    Formula = A2B3

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