Oxidation Rules

Rules for Assigning Oxidation States

 

Rule #1

The oxidation state of an atom in its elemental state is 0.

 

(BrINClHOF: Br2, I2, N2, Cl2, H2 O2 F2), Cu, Al, Fe)

Rules for Assigning Oxidation States

 

Rule #2

The oxidation state of a monoatomic ion is identical to the ion charge.

Rules for Assigning Oxidation States

 

Rule #3

The sum of all oxidation states of all atoms within a compound is 0.

Rules for Assigning Oxidation States

 

Rule #4

The sum of all oxidation states of all atoms within a polyatomic ion is identical to the ion charge.

Rules for Assigning Oxidation States

 

Rule #5

The oxidation state of all Group IA atoms in a compound is +1.

Rules for Assigning Oxidation States

 

Rule #6

The oxidation state of all Group IIA atoms in a compound is +2.

Rules for Assigning Oxidation States

 

Rule #7

The oxidation state of H in combination with

nonmetals is +1.

Rules for Assigning Oxidation States

 

Rule #8

The oxidation state of H in combination

with metals is -1.

Rules for Assigning Oxidation States

 

Rule #9

The oxidation state of F in all compounds is -1.

Rules for Assigning Oxidation States

 

Rule #10

The oxidation state of O in most compounds is -2

(unless the compound also contains F, in which case the oxidtation state of O is -1).

Rules for Assigning Oxidation States

 

Rule #11

The oxidation state of O in peroxides (i.e. O2-2) is -1.

Rules for Assigning Oxidation States

 

Rule #12

The oxidation state of Group VIIA atoms is -1 when in combination with metals, nonmetals (other than O) and other halogens lower in Group VIIA.
x

Hi!
I'm Larry

Hi there, would you like to get such a paper? How about receiving a customized one?

Check it out