Oxidation Flashcards
1
Q
Atoms in a pure element have an oxidation number of ____
A
0
2
Q
For monatomic ions, the oxidation number is
A
Equal to the charge
3
Q
When combined with another element, Fluorine (F) always has an oxidation number of
A
-1
4
Q
The oxidation number of H is ___ in most compounds, but _____ if combined with an alkali metal
A
+1, -1
5
Q
The oxidation number of oxygen is ____ in most compounds, but when paired with F _____ and in H₂O₂
A
-2 ; F has -1 and Oxygen will have 1; H has a oxidation number +1 and O has -1
6
Q
Cl, Br, and I always have oxidation numbers of ____ in compounds except when combined with O or F
A
-1
7
Q
The sum of the oxidation numbers of all atoms must be ______ to the charge of the neutral compound or polyatomic ion
A
equal
