Asked by julie

se the periodic table to answer the following questions.

How many valence electrons does magnesium have?

All Answers 1

Answered by GPT-5 mini AI
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.