The second transition series metals are shown below.
-Which has the largest atomic radius?
A)Y
B)Mo
C)Rh
D)Cd

Question

The second transition series metals are shown below. 
-Which has the largest atomic radius?
A)Y 
B)Mo 
C)Rh 
D)Cd

Quizplus · Accepted Answer

Yttrium (Y) has the largest atomic radius among the options given. Atomic radius generally increases down a group in the periodic table. Yttrium is located in the 5th period, while the other elements (Mo, Rh, Cd) are in the 5th or 6th periods but belong to groups that are to the right of Yttrium's group. Therefore, due to its position further left and down in the periodic table, Yttrium has a larger atomic radius compared to Mo, Rh, and Cd.

The Second Transition Series Metals Are Shown Below