Oxidation number rules Flashcards
(11 cards)
1
Q
oxidation num of free element
A
0
2
Q
oxidation num of flourine in compounds
A
-1
3
Q
oxidation num of oxygen in compounds
A
-2
4
Q
exception to oxidation num of oxygen
A
when it is in a peroxide
5
Q
when does the oxidation num of oxygen become more positive
A
when bonded with F
6
Q
oxidation num of hydrogen in compounds
A
1
7
Q
oxidation num of hydrogen in metal hydride
A
-1
8
Q
oxidation num of alkali metals and alkaline earth metals
A
+1 and +2
9
Q
oxidation num of monoatomic ion
A
charge of that ion
10
Q
sum of oxidation numbers in a polyatomic ion must equal
A
the charge of the ion
11
Q
sum of oxidation numbers in a compound must equal
A
0
