1. Periodic Reasoning

2. Let me tell you a story…

3. What is dihydrogen monoxide? H2O Which is…

4. What is an atom?

5. What do you think an atom looks like?

6. Have you seen these before?

7. The Parts of an Atom

8. Atoms make Elements!

9. What is this?

10. An Element: Oxygen Atomic Number Chemical Symbol Element Name
Atomic Mass

11. An Element: Oxygen Atomic Number Chemical Symbol Element Name
(# of protons & electrons)
Chemical Symbol
(Abbreviation or Letter Code)
Element Name
Atomic Mass
(# of protons and neutrons)

12. Thanks to Dmitri Mendeleev…

13. Let’s Explore… Then… Summary and Explanation

14. Your task… Create an alternate way of organizing the Periodic Table and explain why your system works.

15. Tell Mendeleev what you did and why!