3 AS Chemistry resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter AS SubjectClear filter Chemistry Exam board WJEC TopicClear filter Atomic Structure Emission and absorption spectra Ionisation energies Radioactivity Resources Revision Notes Chemistry 1.5 Emission and absorption spectra AS, Chemistry Revision notes 5.0 / 5 Emission and absorption spectra AS, Chemistry Revision notes 4.5 / 5 Basic Ideas about Atoms AS, Chemistry Revision notes Search again