8.1—What is meant by the term ‘oxidation number’ and understand the rules for assigning oxidation numbers

Know what is meant by the term ‘oxidation number’ and understand the rules for assigning oxidation numbers.

Use —what is meant by the term ‘oxidation number’ and understand the rules for assigning oxidation numbers to connect the rule to the data and decision in the question.

This matters because —what is meant by the term ‘oxidation number’ and understand the rules for assigning oxidation numbers determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —what is meant by the term ‘oxidation number’ and understand the rules for assigning oxidation numbers to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —What is meant by the term ‘oxidation number’ and understand the rules for assigning oxidation numbers is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.