8.28—Make predictions about fluorine and astatine and their compounds, in terms of knowledge of trends in halogen chemistry

Be able to make predictions about fluorine and astatine and their compounds, in terms of knowledge of trends in halogen chemistry.

Use —make predictions about fluorine and astatine and their compounds, in terms of knowledge of trends in halogen chemistry to connect the rule to the data and decision in the question.

This matters because —make predictions about fluorine and astatine and their compounds, in terms of knowledge of trends in halogen chemistry determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —make predictions about fluorine and astatine and their compounds, in terms of knowledge of trends in halogen chemistry to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Make predictions about fluorine and astatine and their compounds, in terms of knowledge of trends in halogen chemistry is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.