Edexcel A Level Chemistry lesson covering atomic structure, subatomic particles, atomic number, mass number and isotopes, with exam practice and questions. All this and more covered in this comprehensive lesson with questions and answers! This is a Year 12 A level lesson for Edexcel Paper 1 – 9CH0/01, but it can also be used for all UK exam boards. All the slides in this lesson are fully animated and include answers to every mini plenary question and exam question.

Slide 1 - Title and 5-minute starter. The starter is a grid of four questions entitled ‘last week, last lesson, today’s learning and future learning’. Use this generic slide for all your lessons by simply changing the questions and the answers each time.
Slide 2 - Lesson objectives (see thumbnail image)
Slide 3 – information about sizes of atoms and nuclei
Slide 4 – most of the atom is empty space
Slide 5 – further explanation about the source of the mass of the atom
Slide 6 – mini plenary questions. A set of questions of increasing difficulty to review the students’ learning so far. Answers appear on the screen as you click
Slides 7 – 8: explanation that the mass of the nucleus comes from the protons and neutrons
Slides 9 – 11: a table of the charge and relative mass of the different sub-atomic particles. Print slides 10 – 11 so that the students can complete this in their books. Answers appear as you click
Slide 12 - mini plenary questions. A set of questions of increasing difficulty to review the students’ learning so far. Answers appear on the screen as you click
Slides 13 – 14: explanation of atomic number and relative atomic mass
Slide 15 – explanation of isotopes
Slide 16 – mini plenary. An exam question on isotopes, the mark scheme answer appears when you click
Slides 17 – 20: Independent practice. On this slide, students are given a table to fill in with the number of protons, electrons and neutrons of a range of chemical species. Answers animate as you click

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