Question

What is ionic radius? Why is size of
cation smaller than that of its
corresponding neutral atom?​

Answer 1

Answer:

Ionic radius, rion, is the radius of a monatomic ion in an ionic crystal structure. Although neither atoms nor ions have sharp boundaries, they are sometimes treated as if they were hard spheres with radii such that the sum of ionic radii of the cation and anion gives the distance between the ions in a crystal lattice.A cation is smaller than the neutral atom as the effective nuclear force on each electron increases due to a decrease in the number of electrons. Thus the electrons are held a bit more closely towards the center.

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Answer 2

:

Ionic radius, is the radius of a c ion in an ionic crystal structure. Although neither atoms nor ions have sharp boundaries, they are sometimes treated as if they were hard spheres with radii such that the sum of ionic radii of the cation and anion gives the distance between the ions in a crystal lattice.A cation is smaller than the neutral atom as the effective nuclear force on each electron increases due to a decrease in the number of electrons. Thus the electrons are held a bit more closely towards the center.

Explanation: