a level aqa chemistry topic detailed checklist

Unit 1: Atomic Structure and the Periodic Table

  • Study the arrangement of protons and neutrons in the nucleus
  • Learn about the arrangement of electrons in energy levels around the nucleus
  • Recognize protons as positively charged particles
  • Recognize neutrons as neutral particles
  • Recognize electrons as negatively charged particles
  • Understand that atomic number represents the number of protons in an atom
  • Understand that mass number is the total number of protons and neutrons in an atom
  • Define isotopes as atoms of the same element with different numbers of neutrons
  • Calculate the relative atomic mass by considering the abundance of each isotope
  • Learn about the rows (periods) and columns (groups) on the periodic table
  • Understand the trends in atomic size, ionization energy, and electronegativity
  • Identify the alkali metals, alkaline earth metals, transition metals, halogens, and noble gases
  • Understand the properties of elements in each group such as reactivity and valence electrons

Unit 2: Bonding, Structure, and the Properties of Matter

Unit 3: Quantitative Chemistry

Unit 4: Chemical Changes

Unit 5: Energy Changes

Unit 6: The Rate and Extent of Chemical Change

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