How many valence electrons does magnesium (Mg) have?

A. 12
B. six
C. three
D. two
Is the answer D?

yes, group 2

Yes, the answer is D. Magnesium (Mg) has two valence electrons.

To determine the number of valence electrons in an atom, you can refer to the periodic table. Magnesium is found in Group 2, or the alkaline earth metals. Group 2 elements have two valence electrons.

The periodic table is organized in columns called groups, and the group number indicates the number of valence electrons. In the case of magnesium, which is in Group 2, it has two valence electrons.

So, in summary, magnesium (Mg) has two valence electrons, making the correct answer D.