EVERYDAY SCIENCE

Detailed explanation-1: -Atomic radius is determined as half the distance between the nuclei of two identical atoms bonded together. The atomic radius of atoms generally decreases from left to right across a period. The atomic radius of atoms generally increases from top to bottom within a group.

Detailed explanation-2: -When two atoms of the same element are covalently bonded, the radius of each atom will be half the distance between the two nuclei because they equally attract the electrons.

Detailed explanation-3: -Figure 6.31 (a) The radius of an atom is defined as one-half the distance between the nuclei in a molecule consisting of two identical atoms joined by a covalent bond.

Detailed explanation-4: -Half of the distance between two atoms when they are bound together by a single bond in a covalent molecule is called “Metallic Radius”.

Detailed explanation-5: -Covalent radius is half of the internuclear separation between the nuclei of two single-bonded atoms of the same species (homonuclear). While van der Waals radius is used to define half of the distance between the closest approach of two non-bonded atoms of a given element.