Which element in Group 7A has the smallest atomic radii?
A)F
B)Cl
C)Br
D)I
E)At

Name: Which element in Group 7A has the smallest atomic radii? A)F B)Cl C)Br D)I E)At
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Question

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As you move down the group, the atomic radii increase due to the addition of electron shells. However, as you move right across a period, the atomic radii decrease due to an increase in nuclear charge. Fluorine (F) is located at the top right of Group 7A, and thus has the smallest atomic radii.

Which Element in Group 7A Has the Smallest Atomic Radii