Answer :
Final answer:
Bromine has the smallest atom size among the provided elements, belonging to the halogen group with 35 electrons.
Explanation:
Bromine has the smallest atom among the elements provided. It belongs to the halogen group and has 35 electrons in its atomic structure, giving it a small atomic radius.
Comparing the given options, bromine stands out for having the smallest atom size, making it the correct choice.
In the periodic table, elements in the same group tend to have similar atomic sizes, with bromine being the smallest in this case.
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