• relative charge and masses of protons, neutrons and electrons

  • mass number symbol

  • define mass number

  • atomic number symbol

  • define atomic number

  • define isotopes

  • relative atomic mass symbol

  • define relative atomic mass

  • 12C atom

  • define ions

  • what is mass spectrometry used for?

  • why is Time of Flight mass spectrometry system kept under a vacuum

  • steps in TOF mass spectrometry

  • ionisation

  • ionisation equation

  • acceleration

  • kinetic energy equation (don’t need to learn)