Edexcel•A-Level•Chemistry
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Atomic Structure and the Periodic Table
Atomic models, electron configuration, and periodic trends
Practice 21 subtopics in Atomic Structure and the Periodic Table. All questions match the Edexcel A-Level specification.
About Atomic Structure and the Periodic Table
Atomic Structure and the Periodic Table is a key topic in the Edexcel A-Level Chemistryspecification. This topic covers atomic models, electron configuration, and periodic trends.
Master all 21 subtopics below with unlimited AI-generated questions. Each subtopic page includes sample questions and the ability to generate unlimited practice questions with detailed solutions.
All Subtopics (21)
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Protons, neutrons and electronsAtomic number and mass numberIsotopesMass spectrometryCalculating relative atomic massShells, subshells and orbitalss, p, d orbital shapesElectron configuration notation (1s² 2s² etc.)Electron configuration of ionsAufbau principleHund's rulePauli exclusion principleFirst ionisation energySuccessive ionisation energiesTrends in ionisation energyEvidence for electron shells from ionisation energiess, p, d and f blocksPeriodicityTrends across Period 3Atomic radius trendsElectronegativity trends
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