Assigning Oxidation Numbers Flashcards
1
Q
What is the order of priority for oxidation number
A
1) free elements
2) oxidation numbers of monoatomic ions
3) sum of oxidation numbers neutral molecules/ions
4) metal
5) non metals
2
Q
What is the oxidation state of free elements
A
0
3
Q
What is the oxidation number of monoatomic ions
A
It’s the charge
4
Q
What is the oxidation numbers for neutral molecules and numbers in charged ions
A
Sum of oxidation numbers is a neutral molecule is 0
Sum of oxidation numbers in an ion is charge
5
Q
What are the charges of metals and what group has what charge
A
Metals have a positive oxidation numbers; group 1A=+1 group 2A=2+
6
Q
What oxidation numbers/order do non metals get
A
F: -1
H: +1
O: -2
Group 7A: -1
Group 6A: -2
Group 5A: -3
