22.4.2—The appearance and formation of emission and absorption line spectra

understand the appearance and formation of emission and absorption line spectra.

Use —the appearance and formation of emission and absorption line spectra to connect the rule to the data and decision in the question.

This matters because —the appearance and formation of emission and absorption line spectra determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —the appearance and formation of emission and absorption line spectra to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —The appearance and formation of emission and absorption line spectra is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.