How can oxidation numbers be used?
By chemists to keep track of how electrons are being used in bonding
What is the oxidation number of an atom?
Number of electrons an atom uses to bond with atoms of another element
What is the oxidation number of oxygen when bonding to fluorine?
+2
What happens when elements have more than one stable oxidation number?
Element’s oxidation number is included in compound name or ion as Roman numeral, without it, element’s oxidation state is unknown
Which metals form ions with different oxidation numbers?
Most commonly transition metals
What are oxyanions?
Negative ions containing an element with oxygen