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Their charges would be +2. When Group 2 elements lose two electrons they form positively charged ions (+2) ions. Magnesium, Calcium, Beryllium Strontium and Barium, lose their electron form positively charged Mg2+, Ca2+, Ba2+, Be2+ Sr2+ ions. These elements lose their electrons to obtain a noble gas electronic configuration.
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Their charges would be +2. When Group 2 elements lose two electrons they form positively charged ions (+2) ions. Magnesium, Calcium, Beryllium Strontium and Barium, lose their electron form positively charged Mg2+, Ca2+, Ba2+, Be2+ Sr2+ ions. These elements lose their electrons to obtain a noble gas electronic configuration.

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