3. Redox Flashcards
(9 cards)
1
Q
What is the oxidation number for uncombined elements?
A
always 0
2
Q
What is the oxidation number for Ions
A
Always the number of the charge on the ion
3
Q
What is the oxidation number for group 1?
A
Always +1
4
Q
What is the oxidation number for group 2
A
always +2
5
Q
What is the oxidation number for Aluminium?
A
always +3
6
Q
What is the oxidation number for hydrogen, and its exception?
A
It is +1 EXCEPT in hydrides (NaH) then it is -1
7
Q
What is the oxidation number for fluorine?
A
always -1
8
Q
What is the oxidation number for chlorine, and its exception?
A
It is -1 EXCEPT when it is in a compound with F and 0, then it will have a positive value
9
Q
What is the oxidation number for oxygen, and its exceptions?
A
It is -2
EXCEPT in peroxides it will be -1
AND in OF2 it will be +2
