Now a days it is thought that oxidation is simply decrease in electron density and reduction is increase in electron density.
How would you justify this?

Explanation

Oxidation: The process of removing electrons from an element is called oxidation. It is also-called as de-electronation.
Oxidation means decrease in electron. Density
`e.g.:2Cl^(-)to Cl_(2)+2e^(Theta).`
Oxidation process occurs at anode in the electrolysis process.
Reduction : The process of addition of electrons to an element is called reduction. It is also called as electronation.
Reduction means in electron density.
`e.g.:Mg^(+2)+2e^(-)to Mg`
to Reduction process occurs of cathode in the elecrolysis process.