Oxidation reactions

(OIL) = Oxidation Is Lost

Oxidized = Increase in Oxidation State = Electrons Lost => Reducing Agent

(RIG) = Reduction Is Gain

Reduced = Decrease in Oxidation State = Electrons Gained => Oxidizing Agent

(G1) is 0

For an atom in its elemental form the oxidation state is ___.

(G2) oxidation state = ionic charge

For a monatomic ion, the ___ equals the ___.

(G3) Neutral compound = 0 ; Ionic charge = oxidation states

The sum of oxidation states for the atoms in a neutral compound must equal ___. ___ is equal to the sum of ___ for polyatomic ions.

(S1) +1

Group 1(Alkali metals) Take oxidation state ___ in all compounds.

(S2) +2

Group 2 (Alkaline Earth metals) take oxidation state +2 in all compounds.

(S3) Nonmetals = +1 ; Metals or boron = -1

Hydrogen takes oxidation state ___ in combination with nonmetals, ___ in combination with metals or boron.

(S4) -1

Fluorine takes oxidation state ___ in all compounds.

(S5) -2 EXCEPT in Peroxide -1 or Fluorine

Oxygen takes oxidation state ___ EXCEPT in ___ compounds (oxidation state ___) or when combined with
___.

(S6) -1 EXCEPT

Group 17 (Halogens) Usually take oxidation state ___, except when combined with oxygen or another halogen higher in the group