The radius of `Na^(+)` cation is less than that of Na atom. Give reason.

The radius of Na^(23) nucleus is

Size of cation is smaller than that of atom because of

The diameter of efferent arteriole is less than that of afferent arteriole. Give reason.

Why the atomic radius of gallium is less than that of Al?

Statement-1: Na^(+) and AI^(3+) are isoelectronic but the magnitude of ionic radius or AI^(3+) is less than that of Na^(+) . Statement-2: The magnitude of effective nuclear charge of the outer most shell electrons in AI^(3+) is greater than that of Na^(+) .

Assertion (A): The mobility of Na^(o+) is lower than that of K^(o+) ion. Reason (R): The ionic mobility depends upon the effective radius of the ion.