REDOX Flashcards
(18 cards)
What are the rules for oxidation numbers for neutral elements?
They’re always zero.
What is reduction?
Gaining of electrons
What is the loss of electrons called?
Oxidation
What is the gaining of electrons called?
Reduction
What is oxidation?
The loss of electrons.
What do oxidation numbers always have to add up to?
The charge of the compound
What is the oxidation number of Oxygen usually?
-2
What is usually the oxidation number of monoatomic ions?
The charge of the ion
What’s the oxidation number of Cl-?
-1
Is there a set oxidation number for transition metals?
No. Each transition element has multiple oxidation numbers depending on what they’re reacting with.
In terms of oxidation numbers, what is reduction?
Decrease of oxidation number.
In terms of oxidation number, what is oxidation?
Increase of oxidation number.
What is always the oxidation number for fluorine?
-1
What’s chlorine, bromine and iodine’s usual oxidation number?
-1
What is the exception for the oxidation numbers of Chlorine, bromine and iodine?
When in a compound with oxygen, their number changes.
What is always the oxidation number for neutral compounds?
Zero.
What is a general rule for periodic table groups charges and oxidation number?
The charges of an element in a certain group is a lot of the time also the oxidation number for elements.
What’s the oxidation number for Hydrogen usually?
+1
