2.17—Represent data, in a graphical form (including the use of logarithms of first ionisation energies on a graph) for elements 1

Be able to represent data, in a graphical form (including the use of logarithms of first ionisation energies on a graph) for elements 1 to 36 and hence explain the meaning of the term ‘periodic property’.

Use —represent data, in a graphical form (including the use of logarithms of first ionisation energies on a graph) for elements 1 to connect the rule to the data and decision in the question.

This matters because —represent data, in a graphical form (including the use of logarithms of first ionisation energies on a graph) for elements 1 determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —represent data, in a graphical form (including the use of logarithms of first ionisation energies on a graph) for elements 1 to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Represent data, in a graphical form (including the use of logarithms of first ionisation energies on a graph) for elements 1 is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.