Oxidation Numbers Flashcards
1
Q
What is the 1st Rule?
A
The Oxidation Number of an Uncombined element is zero
2
Q
What is the 2nd Rule?
A
The Sum of the Oxidation number in a Compoundis zero.
In an ion the sum equals the overall charge
3
Q
What is the 3rd Rule?
A
In compounds the oxidation numbers of Group 1 metal is +1 and Group 2 metal is +2
4
Q
What is the 4th Rule?
A
The Oxidation number of Oxygen is -2 in compounds expect with flourine or in peroxides
5
Q
What is the 5th Rule?
A
The oxidation number of hydrogen is +1 in compounds expect in metal hydrides
6
Q
What is the 6th Rule?
A
In Chemical Species with atoms of more than one element, the most electronegative element is given the negative oxidation number
7
Q
When are Oxidation numbers used?
A
Redox Reactions
