Question

Identify the wrong statement in the following.

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

Answer 1

Answer: (A)

Amongst isoelectronic species, smaller the positive charge on the cation, smaller is the ionic radius

Answer 2

Ionic size $\propto \frac{1}{\text { charge on cation }}$