Question

16 select the answer that lists the elements in increasing atomic radius. (1 point) fluorine, sulfur, barium, francium barium, sulfur, fluorine, francium francium, barium, sulfur, fluorine fluorine, barium, francium, sulfur

Explanation:

Atomic radius increases down a group and decreases across a period. Fluorine (F) is in period 2, sulfur (S) in period 3, barium (Ba) in period 6, and francium (Fr) in period 7. So, as we go from period 2 to 7, the atomic radius generally increases.

Answer:

Fluorine, Sulfur, Barium, Francium