Question

What is the difference between atomic radius and covalent radius?

Answer 1

the distance from the centre of the nucleus to the outermost shell of an atom is called atomic radius
covalent radius is the measure of the size of an atom

Answer 2

$\Huge\mathtt{ATOMIC\: RADIUS:-}$

❀ Atomic radius is the distance between centre of atomic nucleus and the electronic cloud of the outermost energy level .

❀ Atomic radii can be measured by x-ray or other spectroscopic methods .

❀ Note ; the atomic radii of noble gases are not considered, Being monoatomic, their (non - Bonded radii) values are very large .

❀ Infact radii of noble gases should be compared not with the covalent radii. With the Van der Waals radii of other elements .

$\Huge\mathcal{COVALENT\: RADIUS:-}$

❀ It is the one half of the internuclear distance between atoms of a Homo Nuclear covalent atoms .