Question

multiple choice 1 point select the atom with the largest atomic radius. mg ca ba sr

Explanation:

Step1: Recall atomic - radius trend

Atomic radius increases down a group in the periodic table.

Step2: Locate elements in periodic table

Mg (Magnesium), Ca (Calcium), Sr (Strontium), and Ba (Barium) are all in Group 2 (alkaline - earth metals). Ba is the furthest down the group.

Answer:

C. Ba