Question

arrange the following in ascending order
covalent radius , Vander Waal radius,Metallic radius

Answer 1

Answer:

vanderwall radius more than covalent and metallic radius

and metallic radius also called crystal radius

Answer 2

The ascending order of the given radii is Covalent Radius<Metallic Radius< Vander Waals Radius.

• The covalent radius is half the distance between centers of nuclei of two similar atoms involved in covalent bond formation.
• A covalent bond is formed by sharing of electrons, during which the corresponding atoms come close to each other. So the covalent radius is less than that of the atomic radius of individual atoms.
• Metallic radius is half the distance between the centers of nuclei of two adjacent atoms in a metal lattice. In this scenario, atoms are just adjacent to each other and do not come closer to share any electrons. So metallic radius is greater than the covalent radius.
• Vander Waals radius is half the distance between the two atoms that are not bonded to each other and are not in the same molecule. To calculate Vander Waals radius, the atoms must possess intermolecular attractions between them. These are weak forces and the atoms are not brought mush close to each other. So Vander Waals radius is greater than metallic and covalent radii.