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Chemistry 24 Online
OpenStudy (dtan5457):

Element M has a electronegativity of less than 1.2 and reacts with bromine to form the compound MBr2. Element M could be.. Al Na Ca K

OpenStudy (dtan5457):

I know it's CA, but don't know why..

OpenStudy (anonymous):

Bromine has a -1 charge, and since there are two of them, and only one of M, M must have a +2 charge. Out of those 4, only Calcium has a +2 ionic charge. https://answers.yahoo.com/question/index?qid=20101215182553AAQi38r

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