Question

Question

What is Atomic Radius ?​

Answer 1

Atomic radius:

It is defined as “the distance from the centre of the nucleus to the outermost shell of electrons”. ... The covalent and Van der Waals radii decrease with increase in atomic number as they move from left to right in a period. The atomic radius decreases from left to right within a period.

Answer 2

Answer:

The atomic radius of a chemical element is a measure of the size of its atom, usually the mean or typical distance from the center of the nucleus to the outermost isolated electron. Since the boundary is not a well-defined physical entity, there are various non-equivalent definitions of atomic radius