Periodic Table Introduction & Trends Lesson | IGCSE Chemistry Topic 8 | Grade 9-11 General Information: Full lesson PowerPoint introducing the layout of the periodic table, atomic and mass number, Mendeleev, and key trends (metallic character, groups, periods, ion charges). Includes misconceptions check (true/false statements), guided notes on protons/neutrons, and quick questions on why elements in the same group have similar properties. Estimated Content:Slides: ~10–12 with success criteria,