The element having the Smallest atomic radius is Carbon. Hence. Option (3) is correct
What is Atomic Radius ?
The atomic radius of a chemical element is a measure of the size of its atom, usually the mean or typical distance from the center of the nucleus to the outermost isolated electron.
Atomic Radius Increases down the group.
All the given elements belongs to same group ie, 14th Carbon is the top most element of the group.
Therefore, The element having the Smallest atomic radius is Carbon. Hence. Option (3) is correct
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