Which of the following atoms is the largest?
A)Ba
B)Sr
C)Ca
D)Mg
E)Be

Name: Which of the following atoms is the largest? A)Ba B)Sr C)Ca D)Mg E)Be
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Question

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The size of an atom increases as you move down a group and decreases as you move across a period from left to right. Ba (barium) is located at the bottom of group 2 (also known as the alkaline earth metals) and has more electron shells than the other options, making it the largest atom among the given choices.

Which of the Following Atoms Is the Largest