Question

can anyone please explain
me metallic radius and give one example

Answer 1

Metallic Radius is used for metal atoms which are assumed to be closely packed spheres which are supposed to touch one another.

It is defined as half the distance between the nuclei of two adjacent metal atoms.

For example, the distance between the two adjacent potassium atoms in solid potassium is 4.62 A°

Therefore, the metallic Radius of Potassium is 4.62/2 = 2.31 A°.