In a given period this group has the element with the largest atomic radius.
A)Group 1A
B)Group 2A
C)Group 3A
D)Group 4A
E)Group 5A

Question

Quizplus · Accepted Answer

Group 1A elements are alkali metals which have only one valence electron and have the largest atomic radii among their respective periods. This is because with every added shell the size of the atom increases but since there is only one electron in the outermost orbital of Group 1A elements, they have the largest atomic radii in their respective periods compared to other groups.

In a Given Period This Group Has the Element with the Largest