IGCSE Atomic Structure, animated powerpoint. Electrons, protons & neutrons. Introducing Isotopes, Atomic weight, the Billiard Ball model, the Plum pudding model, the Gold Foil experiments, the Nuclear model, the Electron Shell model & electron configuration. 22 slides.

IGCSE Radioactivity, animated powerpoint. Unstable nuclei, alpha/beta/gamma decay, decay equations, half-life, Ba-137m experiment, radioisotope uses, ionisation smoke detector, carbon-dating, background radiation, harmful effects of radiation, safety precautions. 34 slides.