12.12—Define the terms: i standard enthalpy change of atomisation, ∆atH ii electron affinity iii lattice energy (as the exothermic

Be able to define the terms: i standard enthalpy change of atomisation, ∆atH ii electron affinity iii lattice energy (as the exothermic process for the formation of one mole of an ionic solid from its gaseous ions).

Use —define the terms: i standard enthalpy change of atomisation, ∆ath ii electron affinity iii lattice energy (as the exothermic to connect the rule to the data and decision in the question.

This matters because —define the terms: i standard enthalpy change of atomisation, ∆ath ii electron affinity iii lattice energy (as the exothermic determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —define the terms: i standard enthalpy change of atomisation, ∆ath ii electron affinity iii lattice energy (as the exothermic to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Define the terms: i standard enthalpy change of atomisation, ∆atH ii electron affinity iii lattice energy (as the exothermic is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.