Science, asked by Abrar177, 1 year ago

solve both plz plz plz

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Answered by sahil42316

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(9)= electronic configuration of beryllium is K L

2 2

electronic configuration of magnesium is 2,8,2

electronic configuration of calcium is 2 8 8 2

valency of beryllium magnesium and Calcium is 2

most reactive element is magnesium

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