A number which is assigned to each atom or ion in a compound which explains its degree of oxidation is called?

ایک عدد جو کسی مرکب میں ہر ایٹم یا آئن کو تفویض کیا جاتا ہے جو اس کی آکسیڈیشن کی ڈگری کو بتاتا ہے کہلاتا ہے؟

Oxidation degree only

Oxidation state and number

Oxidation state only

Oxidation number

An oxidation number (also known as oxidation state) is a number assigned to an atom or ion in a compound that represents its degree of oxidation, or its hypothetical charge if all its bonds were ionic.
It is a way to keep track of the number of electrons gained or lost by an atom in a chemical reaction.