1. A t o m i c S t r u c t u r e Part 2

3. Recap

10. Overview of topic Structure of Atoms Isotopes Electronic Arrangement Electronic Structure and the Periodic Table Ions Atomic Structure

12. What are isotopes?

19. What are isotopes 1 2 1 1 1 1 1 0 1 Electrons Neutrons Protons Number of Isotopes

21. Why does chlorine has a nucleon number of 35.5

22. Why does chlorine has a nucleon number of 35.5 In the periodic table, chlorine is denoted as

24. Practice Time Part 3 Worksheet 2

25. Electrons Arrangement In Atoms

27. Electronic Structure

30. Electronic Structure 1 st shell 2 electrons 3 rd shell 8 electrons (proton number 20) Nucleus 2 nd shell 8 electrons

35. Summary

39. Any Questions

40. Practice Time Part 3 Worksheet 2