Curated OER
Size of Atoms - Trends
This compendious collection of slides leaves no questions when it comes to the concept of atomic size. Thorough and easy-to-read graphs, tables, and graphics explain atomic radii, the shielding effect, the octet rule, isoelectric...
Creative Chemistry
Common Ions and Formulae of Ionic Compounds
This handout, produced in the UK, contains a chart of cations and anions. It explains how ionic compounds are formed and named. This concise and attractive handout can be helpful as a reference for your chemistry apprentices.