This resource includes 5 revision quizzes covering all the content required for modules 1 through 5 of GCSE OCR Chemistry. Answers to all the quizzes are included (except for C3). N.B. these have been made for the 2012 specification which is outdated. However, the science involved may still be relevant to the new specification

This A-level handout about electron configurations explains principle quantum shells, electron sub-shells, electron orbitals, electron configuration notation, and the use of the periodic table in determining the electron configuration of different atoms.

A list of all the required definitions for year 1 of A-level OCR Chemistry, including the following topics: - Foundations in Chemistry - Periodic Table and energy - Year 1 organic - Lattice enthalpy