Oxidation Number

Moderators: Chem_Mod, Chem_Admin

VioletKo3F
Posts: 103
Joined: Sat Sep 07, 2019 12:18 am

Oxidation Number

Postby VioletKo3F » Wed Mar 04, 2020 1:38 am

Can someone give a general outline of how to find oxidation number?

JohannaPerezH2F
Posts: 94
Joined: Wed Sep 18, 2019 12:18 am

Re: Oxidation Number

Postby JohannaPerezH2F » Wed Mar 04, 2020 8:59 am

The oxidation number of a free element is always 0.

The oxidation number of a monatomic ion equals the charge of the ion.

The oxidation number of
H
is +1, but it is -1 in when combined with less electronegative elements.

The oxidation number of
O
in compounds is usually -2, but it is -1 in peroxides.

The oxidation number of a Group 1 element in a compound is +1.

The oxidation number of a Group 2 element in a compound is +2.

The oxidation number of a Group 17 element in a binary compound is -1.

The sum of the oxidation numbers of all of the atoms in a neutral compound is 0.

The sum of the oxidation numbers in a polyatomic ion is equal to the charge of the ion.

Wendy 1E
Posts: 111
Joined: Sat Aug 17, 2019 12:17 am
Been upvoted: 2 times

Re: Oxidation Number

Postby Wendy 1E » Wed Mar 04, 2020 10:48 am

Adding to this, the oxidation number of ozone (O3) is 0.


Return to “Balancing Redox Reactions”

Who is online

Users browsing this forum: No registered users and 1 guest