A stable, binary ionic compound exists where the cation (A) has a charge twice in magnitude than that of the anion (X). What would be the correct formula for this compound? A) A2X B) A2X4 C) A4X2 D) AX2

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Greenie

Physics

14 August, 16:14

A stable, binary ionic compound exists where the cation (A) has a charge twice in magnitude than that of the anion (X). What would be the correct formula for this compound? A) A2X B) A2X4 C) A4X2 D) AX2

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Elaine Serrano · Answer 1

The cation is positively charged and has a charge twice that of the anion, for example + 2. The anion is negatively charged and in our example where the cation has a + 2 charge, it must have a - 1 charge. In order for the charges to equal zero, there must be two anions: - 1 x 2 = - 2 So the answer is D. AX2