Oxidation Rules Flashcards
0
Q
For monatomic ions, the oxidation number is…
A
Equal to the charge on the ion.
Ex: Mg^2+
1
Q
Each atom in a pure element has an oxidation number of…
A
Zero
Ex: Cu
2
Q
When combined with another element, fluorine always has an oxidation number of…
A
-1
3
Q
The oxidation of O is… In most compounds except…
A
-2
Combined with fluorine and peroxides (ex: Na2O2)
4
Q
Cl, Br, and I have oxidation numbers of …. In compounds, except…
A
-1
Oxygen and fluorine.
5
Q
The oxidation number of H is… Except…
A
+1
When forming in a compound with a metal. (Ex: CaH2)
6
Q
The algebraic sum of the oxidation numbers for the atoms in a neutral compound must be….; in a polyatomic ion, the sum must equal…
A
Zero
Ion charge.
