Which of the following atoms is the smallest?
A)Br
B)Ga
C)As
D)Ca
E)K

Name: Which of the following atoms is the smallest? A)Br B)Ga C)As D)Ca E)K
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Question

Quizplus · Accepted Answer

The atom with the smallest atomic radius is Br (Bromine) because it has the highest effective nuclear charge due to high atomic number and low shielding effect by the electron cloud. As the effective nuclear charge increases, the electrons are pulled closer to the nucleus, causing a decrease in atomic radius.

Which of the Following Atoms Is the Smallest