Oxidation Numbers

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Oxidation Number : 

Oxidation Number Refers to the number of electrons gained or lost to obtain a stable configuration It is possible to lose lower energy electrons (“d” electrons), only after all main level electrons have been lost. Why do some atoms have more than one oxidation number?

Summarize: : 

Summarize: + or -? If you gain electrons, (-) If you lose electrons, (+) Number? Equal to the number of electrons you gain/lose How many do you gain/lose? As many as you need to attain the following configurations: Full octet Filled sublevel Half-filled sublevel

Common Oxidation Numbers : 

Common Oxidation Numbers Tend to havemore than one 0