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15 January, 03:37

In which compound is the ratio of metal ions to non mental ions 1 to 2? 1) calcium bromide 2) calcium oxide 3) calcium phosphide 4) calcium sulfide

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  1. 15 January, 05:39
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    Answer;

    Calcium bromide

    Explanation; Calcium bromide is an ionic compound that is made from calcium element which is a alkaline earth metal and bromine element which is a non metal in group 7. Calcium is in group 2 and has a valency of 2 which means it looses two electrons to form a stable configuration, while bromine has a valency of 1 which means it requires to gain one electron to form a stable configuration. Therefore, a compound Calcium Bromide, with a formula CaBr₂, contains one calcium atom and 2 bromide atoms. Thus, the ratio of metal ions to non-metal ions is 1:2.
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