Question

Discuss the difference between and give examples that represent each type of Include a description of rules for naming. This is worth 10 points, give me a 10 point covalent. answer.

Answer 1

The atomic radius of a chemical element is a measure of the size of its atoms,usually the mean or typical distance from the centre of the nucleus to the boundary of the surrounding cloud of electron.There are various non-equivalent definitions of atomic radius.Ionic and covalent radius are more important ones.

. Covalent radius: Covalent bond radius refers to half of the distance between two singly bond atoms s of the same element (homonuclear X-X bond) and is denoted an der Waals diameter Covalent Distance van der Waals radius Covalent Radius 3. Metallic radius: Th e metallic radius of a metallic element is defined as half the experimentally determined distance between the centers of nearest-neighbour atoms in the solid 2 4. lonic radius: The ionic radius of an element is related to the distance between the centers of neighbouring cations and anions in an ionic compound. You might be confused that how the ionic radius should be determined? There have been many suggestions: in one common scheme, the radius of the O ion is taken to be 140 pm. For example, the ionic radius of Mg is obtained by subtracting 140 pm from the internuclear distance between adjacent Mg2 and O2 ions in solid gO