Which cation has smallest radius [RPET 2000]

1.	Which cation has smallest radius [RPET 2000]
A.	\[{{K}^{+}}\]
B.	\[N{{a}^{+}}\]
C.	\[L{{i}^{+}}\]
D.	\[B{{e}^{2+}}\]
Answer» E.

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Which cation has smallest radius [RPET 2000]

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