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29-12-2015
Chemistry

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Element X reacts with chlorine to form an ionic compound that has a formula of XCl2. To which group could element X belong?(1) Group 1 (2) Group 2 (3) Group 13 (4) Group 15

Respuesta :

10-08-2018

Answer;

Group 2

Explanation;

-Elements in group 2 (alkaline earth metals) have a 2 valence electrons (two electrons in the outermost energy shell). Which means that for these elements to achieve an octet configuration, they will have to loose two electrons. Therefore; element X has a valency electrons, it reacts chlorine to form a compound (XCl2), since chlorine has a valency of 1.

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