Asked by julie
se the periodic table to answer the following questions.
How many valence electrons does magnesium have?
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Magnesium (Mg) has 2 valence electrons.
Reason: Mg is in Group 2 (the alkaline earth metals) and its electron configuration ends in 3s2, so the outermost shell contains two electrons.
Reason: Mg is in Group 2 (the alkaline earth metals) and its electron configuration ends in 3s2, so the outermost shell contains two electrons.
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