An oxidation number is the an atom would have if all bonds involved the of electrons. The oxidation number can be used to track movement of electrons in chemical reactions.

Charge, transfer

Explanation:

Oxidation number can be described as the number that is allocated to elements in a chemical combination.

The oxidation number is basically the count of electrons that atoms in a molecule can share, lose or gain while forming chemical bonds with other atoms of a different element.

it is the most commonly accepted one

qualitative observation deals with data that can be observed with our senses: sight, smell, touch, taste, and hearing. they do not involve measurements or numbers. for instance, colors, shapes, and textures of objects are all qualitative observations.