Oxidized and Reduced reaction species

[Phyzwizz]

I was given 2Na + 2H₂O → 2NaOH + H₂

My only question here is whether the Na on the reactants side is 0 because it is alone? And is it the same thing for the H₂ that is alone on the products side?

So if were the case Na would oxidize and H would reduce?

 

[gabriels-horn]

The oxidation state of atoms in their elemental state is 0.

 

[Borek]

Yes, yes & yes.