12.18—The effect of ionic charge and ionic radius on the values of enthalpy change of hydration and the lattice energy of an ionic

Understand the effect of ionic charge and ionic radius on the values of enthalpy change of hydration and the lattice energy of an ionic compound.

Use —the effect of ionic charge and ionic radius on the values of enthalpy change of hydration and the lattice energy of an ionic to connect the rule to the data and decision in the question.

This matters because —the effect of ionic charge and ionic radius on the values of enthalpy change of hydration and the lattice energy of an ionic determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —the effect of ionic charge and ionic radius on the values of enthalpy change of hydration and the lattice energy of an ionic to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —The effect of ionic charge and ionic radius on the values of enthalpy change of hydration and the lattice energy of an ionic is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.