This lesson plan power point presentation effectively summarizes Isotope notation in a 90-minute lesson. Topics include: atomic number, mass number, protons, neutrons and electrons, Isotopes and isotope notation.The power point houses SEL check-ins, warm up activities, objective, agenda, vocabulary slide, lesson material (book work, hands-on activities and online videos and resources), summary slide, assessments (online and exit ticket questions) and wrap up. The power point also includes tasks