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Identify the wrong statement in the following :
Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius.
Amongst isoelectronic species, greater the negative charge on the anion, larger is the ionic radius.
Atomic radius of the elements increases as one moves down the first group of the periodic table.
Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the periodic table.
Answers (1)
The Atomic radius of the elements decreases across a period from left to right due to an increase in effective nuclear charge. On moving down a group, since, the number of shells increases, so atomic radius increases. Amongst isoelectronic species, the ionic radius increases with increases in negative charge or decrease in positive charge.
Therefore, the correct option is (1).
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