Question

what is the Van der Waals radius?
please give the briefly....

Answer 1

The Van der Waals radius is equal to one half the distance between two unbonded atoms when the electrostatic forces between them are balanced. In other words, it is half of the closest distance between two atoms that aren't bonded or within the same molecule. Picometers (pm) are typically the unit used to report the value.

The distance reflects the action of intermolecular forces (e.g., dipole-dipole and dispersion forces) and is related to van der Waals interactions.

Answer 2

when 2 molecules are held by vanderwaals force then the radius becomes 2 times bigger n the volume 8 times bigger