Structure of an atom - Intro to Back to Basics (1.1), Electron Shells & Ions - Intro to Back to Basics (1.2), The Periodic Table - Intro to Back to Basics (1.3)...
EL 1&2: Mass spectrometry; fusion; emission/absorption spectra, EL 3&4: Electronic configuration, atomic structure, EL 5&6: Covalent bonding, shapes of molecules, amount of substance...