which element would be the least similar to magnesium(mg)? a. be b. sr c. na d. ca submit

Answer

Brief Explanations:

Elements in the same group of the periodic table have similar chemical properties because they have the same number of valence electrons. Magnesium (Mg) is in Group 2 (alkaline earth metals). Beryllium (Be), Strontium (Sr), and Calcium (Ca) are also in Group 2. Sodium (Na) is in Group 1 (alkali metals), so it has different valence electron configuration and chemical properties compared to Mg. Thus, Na is the least similar to Mg.

Answer:

C. Na