3.1.1
Atomic Structure
Fundamental particles, mass spectrometry, electron configuration, and ionisation energies.
Fundamental Particles
Protons, neutrons, electrons. Atomic number, mass number, and isotopes.
→Mass Spectrometry
Time of flight mass spectrometry. Calculating relative atomic mass from spectra.
→Electron Configuration
Shells, sub-shells, and orbitals. s, p, d, f notation and filling order.
→Ionisation Energies
Successive ionisation energies. Evidence for electron shells and sub-shells.
→Exam Practice
MCQs and structured questions with AQA mark scheme answers.
→Flashcards
Review key definitions and concepts with interactive flashcards.