Of the following,which atom has the smallest atomic radius?
A)Ca
B)As
C)Mn
D)Ni

Name: Of the following,which atom has the smallest atomic radius? A)Ca B)As C)Mn D)Ni
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Question

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As (Arsenic) has a smaller atomic radius than Ca (Calcium), Mn (Manganese), and Ni (Nickel) because it has more protons in its nucleus and the added electron shells are not enough to compensate for the increased nuclear charge, resulting in a smaller radius.

Of the Following,which Atom Has the Smallest Atomic Radius