Oxidation number: In chemistry

In chemistry, the terms " oxidation " and "reduction" refer to reactions in which an atom (or group of atoms) loses or gains electrons, respectively. How to Find the Oxidation Number of an Atom? The oxidation number or state of an atom/ion is the number of electrons an atom/ion that the molecule has either gained or lost compared to the neutral atom. Electropositive metal atoms of groups 1, 2 and 3 lose a specific number of electrons and always have constant positive oxidation numbers . This page explains what oxidation states (oxidation numbers ) are and how to calculate and use them. Oxidation Numbers : Definition, Calculation and Examples Oxidation Numbers : Numbers are very useful. When it comes to redox reactions, there are a few reasonably effective numbers , such as oxidation numbers . In simple words, the oxidation number is the number assigned to the components in a chemical combination.