Question

define : a. Ionic radius​

Answer 1

Answer:

Ionic radius:-

it is the measure if a atomic ion is a crystal or other structure

Answer 2

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$\huge{\red{\mathfrak{ANSWER:-}}}$

The ionic radius (plural: ionic radii) is the measure of an atom's ion in a crystal lattice. It is half the distance between two ions that are barely touching each other.

An anion has an additional electron, which increases the size of the electron cloud and may make the ionic radius larger than the atomic radius.