#3.1
know what is meant by the term ‘oxidation number’
#3.2
be able to calculate the oxidation number of elements in compounds and ions
The use of oxidation numbers in peroxides and metal hydrides is expected.
#3.3
understand oxidation and reduction in terms of electron transfer and changes in oxidation number, applied to reactions of s- and p-block elements
#3.4
understand oxidation and reduction in terms of electron loss or electron gain
#3.5
know that oxidising agents gain electrons
#3.6
know that reducing agents lose electrons
#3.7
understand that a disproportionation reaction involves an element in a single species being simultaneously oxidised and reduced
#3.8
know that oxidation number is a useful concept in terms of the classification ofreactions as redox and as disproportionation
#3.9
be able to indicate the oxidation number of an element in a compound or ion, using a Roman numeral
#3.10
be able to write formulae given oxidation numbers
#3.11
understand that metals, in general, form positive ions by loss of electrons with an increase in oxidation number
#3.12
understand that non-metals, in general, form negative ions by gain of electrons with a decrease in oxidation number
#3.13
be able to write ionic half-equations and use them to construct full ionic equations