2.15—Electronic configuration determines the chemical properties of an element

Understand that electronic configuration determines the chemical properties of an element.

Use —electronic configuration determines the chemical properties of an element to connect the rule to the data and decision in the question.

This matters because —electronic configuration determines the chemical properties of an element determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —electronic configuration determines the chemical properties of an element to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Electronic configuration determines the chemical properties of an element is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.