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For the hypothetical compound AX2, which of the following statements is true?. a.) A is a nonmetal from Group 3A, and X is a metal from Group 1A.. . b.) A is a metal from Group 1A, and X is a metal from Group 7A.. . c.) A is a metal from Group 3A, and X is a nonmetal from Group 5A.. . d.) A is a metal from Group 2A, and X is a nonmetal from Group 7A..

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meerkat18

The cations has positive charges that are metals while the anions have negative charges that are non-metals. Upon reaction, there is an exchange in charges that are reflected in the subscripts of the atoms. In this case, compound AX2 must have a cation, A belonging to group 2 A with +2 charge and anion, X  belonging to Group 7A with -1 charge. Answer is D.

Answer:

the answer is D

Explanation:

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