Question

which list consists of elements that have the most similar chemical properties?
mg, al, and sb
mg, ca, and sr
k, al, and ni
n, f, ar

Explanation:

Elements in the same group (vertical column) of the periodic table have similar chemical properties. Mg (magnesium), Ca (calcium), and Sr (strontium) are all in Group 2A (alkaline earth metals). Mg, Al, and Sb are in different groups. K, Al, and Ni are in different groups. N, F, and Ar are in different groups.

Answer:

Mg, Ca, and Sr