Which atom in the following series is the largest?

Name: Which atom in the following series is the largest?
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Question

Quizplus · Accepted Answer

This is because Cs (cesium) is located at the bottom of the alkali metal group in the periodic table, and as you move down a group, the atomic radius increases due to the addition of more energy levels. Therefore, Cs is the largest atom among the given options.

Which Atom in the Following Series Is the Largest