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24-11-2017
Chemistry

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Element m reacts with chlorine to form a compound with the formula mcl2. element m is more reactive than magnesium and has a smaller radius than barium. this element is __________.

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shinmin shinmin

05-12-2017

The answer is Strontium or Calcium. The formula of the compound MCl2 designates that M must have 2+ charges on it and it needs to be an alkaline-earth metal. Element reactivity and atomic radius characteristically increase down the group, meaning that the element could be Ca or Sr.

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