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Atomic Structure
infoWhy this? Atomic structure explains isotopes, electron configurations, and ionisation energies, linking the composition of atoms to the behaviour of elements. Interpreting evidence about atoms develops the models we use to explain bonding and periodic trends.
scheduleWhy now? Placed early, this unit complements the mole's quantitative description of particles with an explanation of their internal structure. Electron configuration then provides the foundation for bonding in the next unit and periodicity later in Year 12.
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