Question

what do you understand by atomic size state its unit​

Answer 1

answer

The atomic radius of a chemical element is a measure of the size of its atoms. It represents the mean distance from the nucleus to the boundary of the surrounding cloud of electrons. ... Radii generally decrease along each period (row) of the table from left to right and increase down each group (column).

Answer 2

hey mate!!!

atomic size is the distance between the nucleus of the atom and its outermost shell.

the unit of atomic size is picometre

I hope it will help you