Of the following, which possesses the smallest atomic radius?
A) Cd
B) Zn
C) Mo
D) Pd
E) Ru

Question

Quizplus · Accepted Answer

Zn (Zinc) has the smallest atomic radius among the options given. Atomic radius generally decreases across a period from left to right in the periodic table due to the increase in nuclear charge, which pulls the electrons closer to the nucleus. Zn is located to the right of all the other elements listed (Cd, Mo, Pd, Ru) in the periodic table, making it have the smallest atomic radius among the options.

Of the Following, Which Possesses the Smallest Atomic Radius