Use lattice enthalpy comparisons to infer covalent character.

In the subtopic Born-Haber cycles (A-level only), this AQA A-Level Chemistry 7405 learning objective focuses on use lattice enthalpy comparisons to infer covalent character. It belongs to Thermodynamics (A-level only), so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include lattice enthalpy. Lattice enthalpy. means the energy change when one mole of an ionic compound is formed from its gaseous ions Avoid the mistake of students often confuse lattice enthalpy with covalent character, thinking that higher lattice enthalpy always indicates stronger covalent bonding; instead, to fix this, students should focus on understanding that lattice enthalpy reflects the strength of ionic bonds, while covalent character arises from the degree of electron sharing between atoms For exam answers, when comparing lattice enthalpies, look for differences in ionic character to infer covalent character in compounds