Question

____________ is the largest radius among the given options.

• A. Atomic radius
• B. Metallic radius
• C. Covalent radius

Answer 1

The correct option is A Atomic radius

Atomic radius is larger than the other two mentioned because when two covalent atoms are made to touch each other, then finding the internuclear distance between them and dividing it into half will give the atomic radius.Whereas covalent and metallic radius is the internuclear distance that is taken when the atoms overlap either during covalent bond or in metallic lattice. So the distance will decrease when overlapping takes place.