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Question

Identify the wrong statement in the following

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

The correct option is A Amongst isoelectronic species, smaller the positive charge on the cation smaller is the ionic radius.
Among the isoelectronic species, smaller the positive charge on the cation, higher the ionic radius because the effective nuclear charge increases as the positive charge increases.
Ans :- A

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