Oxidation Number Rules
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12 Terms
Which group always has a +1 oxidation number?
Group 1
Which group always has a +2 oxidation number?
Group 2
Which group usually has a -1 oxidation number?
Group 17/7A
What is the oxidation number for neutral compounds?
0
What is the oxidation number for polyatomic ions?
The ion’s charge.
What is the oxidation number of Hydrogen with metals?
-1
What is the oxidation number of Hydrogen with nonmetals?
+1
What is the oxidation number of Fluorine?
-1
What is the oxidation number of Oxygen (most times)?
-2
When is the oxidation number of Oxygen -1?
When it is in peroxide.
When are the oxidation numbers for halogens positive?
When paired with Oxygen.
How can you tell when a compound is a peroxide?
When it contains O2 and the oxidation number for the other element is 1.
Note 
Flashcards (56)