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Brainlag Learn / GCSE Chemistry

Atomic structure and the periodic table

Atoms, formulae and equations, separating mixtures, the model of the atom, isotopes, electrons in shells and the groups of the periodic table.

Lessons

  1. Atoms, elements, compounds and equationsElements, compounds and mixtures, reading a formula, and writing balanced symbol equations. 20 min, with the Molar Mass Calculator, free
  2. Separating mixturesFiltration, crystallisation, simple and fractional distillation, and paper chromatography with Rf values. 20 min, free
  3. The model of the atomHow the model of the atom changed, from solid spheres to the nuclear model, and the particles inside an atom. 20 min, with the Periodic Table, free
  4. Isotopes and electronic structureAtomic number and mass number, isotopes, relative atomic mass from abundances, ions, and electrons in shells. 25 min, free
  5. The periodic tableHow the periodic table was built, metals and non-metals, and what groups and periods tell you about electrons. 15 min, with the Periodic Table, free
  6. Groups 0, 1 and 7Noble gases, the alkali metals and the halogens: their trends, displacement reactions, and how transition metals compare. 25 min, free

Practise and test

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