What is the different about atoms after a redox reaction has happened?

After a redox reaction, the atoms involved undergo changes in their oxidation states due to the transfer of electrons. The atom that loses electrons is oxidized, becoming more positively charged, while the atom that gains electrons is reduced, becoming more negatively charged. This change alters the chemical properties and reactivity of the substances involved, leading to the formation of new products with different characteristics. Overall, the rearrangement of electrons and the resulting charge differences define the outcome of the redox process.