Create an account
The more electronegative element in a binary compound...
is assigned the number equal to the charge it would have if it were an ion.
Oxygen has an oxidation number of -2 unless...
it is combined with F, when it is +2, or it is in a peroxide, when it is -1.
In compounds, the elements of groups 1 and 2 as well as aluminum...
have oxidation numbers of +1, +2, and +3, respectively.
The oxidation state of hydrogen in most of its compounds is +1 unless...
it is combined with a metal, in which case it is -1.
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together