Are Oxidation Numbers the Same as Formal Charges?

Formal charge and oxidation state are different terms though we usually assume they are the same. The formal charge determines the number of electrons that occur around an atom of a molecule while oxidation state determines the number of electrons exchanged between atoms during the formation of a molecule.

What is the difference between oxidation number and charge?

The key difference between oxidation number and charge is that we can determine the oxidation number of an atom considering the number of the electron that is either removed or gained by that atom whereas the charge is determined considering the total number of electrons and protons in the atom.

Is oxidation no and charge same?

The oxidation number of a monatomic ion is the same as its charge.