Oxidation and Reduction

NerdzRulz SG

Could anyone explain to me the Oxidation State and Electrons of that topic
Especially Oxidation State.

d3sT1nY SG

Oxidation state is a number assigned to an element in chemical combination that represents the number of electrons lost (or gained, if the number is negative) by an atom of that element in the compound.

So if copper were to lose 2 electrons, then it will have an oxidation state of +2.

Then if oxygen were to gain 2 electrons, then it will have an oxidation state of -2.

NerdzRulz SG

So if copper were to lose 2 electrons, then it will have an oxidation state of +2.

Then if oxygen were to gain 2 electrons, then it will have an oxidation state of -2.

could u give me certain examples?

d3sT1nY SG

Just now was CuO, Copper Oxide.

Another example, Potassium Permanganate, the purple liquid you see in lab.

KMnO4, the Mn has an oxidation state of +7. If you were to count,

Oxygen has oxidation state of -2 thus 4(-2), total will be -8.

Potassium can only have oxidation state of +1 and then Mn has +7.

Thus on the overall, the compound will be neutral.

Or a simple one with salt, NaCl.

Na has oxidation state of +1 after losing 1 electron to Cl and Cl has oxidation state of -1 after gaining the electron.

Can?