Which of the following Group 1A elements has the largest atom?
A) Rb
B) Na
C) K
D) Li

Name: Which of the following Group 1A elements has the largest atom? A) Rb B) Na C) K D) Li
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Question

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In the periodic table, as you move down a group, the atomic size increases due to the addition of electron shells. Rubidium (Rb) is lower in the group than the other elements listed, making it the largest atom among the choices.

Which of the Following Group 1A Elements Has the Largest