Question

What is meant by ionic radius

Answer 1

the ionic radius is the distance between the nucleus and the electron in the outer most shell of an ion

Answer 2

Ionic radius:-)

it is the half of inter Ionic distance between two ions.

● there are two types of ions . - cation and anion.

● cation has positive charge while anion has negative charge.

● size of cation is always smaller than their parent atom .

reason:-)

• number of shell decrease

• unit electron attraction force increase.

● size of anion is always greater than their parent atom

reason:-)

• number of shell increase.

• per unit electron attraction force will decrease so size of atom greater than parent atom