Assertion (A): The ionic size of `Mg^(2+)` is larger than `Al^(3+)`
Assertion (R): In isoelecronic species, greater the nuclear charge, less is the size

Assertion (A): The nagtive ion is always larger than its atom Assertion (R): As the number of electron increase, the nuclear charge per electron is reduced.

Assertion (A): The size decreases in the order O^(2-) gt Mg^(2+) gt Al^(3+) Assertion (R): In isoelectronic ions, the size decreases with increase in nuclear charge.

Assertion: The ionic size of O^(2-) is bigger than that of F^(-) ions. Reason: O^(2-) and F^(-) are isoelectronic ions.

Assertion: The ionic size of O^(2-) is bigger than that of F^(-) ion. Reason: The O^(2-) and F^(-) are isoelectronic ions.

The ionic size of Cl^(-) is greater than that of K^(+) ion, though they are isoelectronic. Explain.

Assertion : Size of Ca^(+2) is larger than K^(+) Reason : Number of electrons in Ca^(+2) is more than K^(+)

The size of Al^(3+) is lower than that of F. Justify,

Assertion (A) : The first ionization energy of Al is lower than Mg. Reason (R ) : Atomic radius of Al is smaller than Mg.

Assertion (A) : The size of a cation is larger in TV than in OV . Reason (R ) : Cations occupy more space than anions is crystals packing.