Chemistry > oxidation
Oxidation number
Elements, compounds, and mixtures > Oxidation Numbers
https://chemed.chem.purdue.edu/genchem/topicreview/bp/ch2/oxnumb.php
Elements, compounds, and mixtures > Oxidation Numbers
https://chemed.chem.purdue.edu/genchem/topicreview/bp/ch2/oxnumb.php