Identify the wrong statement in the following.
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Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius
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Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius
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Atomic radius of the elements increases as one moves down the first group of the periodic table
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Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the periodic Table.
