IB skill practice

Compare lattice enthalpy and ionic radii

Paper 1, Paper 2 5 marks Difficulty 4

Charge product for lattice comparison

An ionic-lattice comparison in a university-style problem set uses ions with charges \(2+\) and \(3-\). Calculate the charge product magnitude used for attraction comparison. Enter the answer and choose the interpretation that matches the HL chemistry evidence.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.