Social Sciences, asked by aryanphutane321, 11 days ago

pls answer pls i will mark brainlist to right answer​

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Answered by sauhardyah
1

Answer:

C - 6 - Electronic configuration=2,4 No. of valence electrons=4 Valency=4

Mg - 12. Electronic configuration=2,8,2. No. of valence electrons=2 valency=2

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