1. The periodic table Presentation by Lisa Allen, Stonington High School

2. What does periodic mean?

6. The original Periodic table

7. Sorting can be a powerful tool

16. Part Two: Periodic Properties Electronegativity Atomic radius Ionization energy Electron affinity

18. Images of water molecules: notice the charges!

23. Periodic trends assignment Electronegativity Atomic radius Ionization energy Electron affinity

25. Rubric for evaluating success Uh, can I call a lifeline on that? Difficulty explaining trend, or answering questions Answers demonstrate understanding. Answers refer to PP as well as to the 3-D table and demonstrate good understanding Handling Questions Nothing to hear! Difficult to hear, or hard to follow. Read presentation. Needs prompting to speak loudly enough to be heard. Good effort to communicate effectively. Audible, clear, no ummmm or uhhh, Easy to follow. Explanation Oh, yeah, I guess all the big ones are on one side, aren’t they? Understands trend, may not be able to explain why the trend exists. Understands trend, communicates reasons for trend Links trend to atomic structure, as well as to other periodic properties. Demonstrated understanding in written paragraph You mean on the computer? All text, mostly quotes from the book. Meets expectations for length, some visuals. Visually interesting, good explanations Power point I was supposed to make a table? When? Key is missing, or table does not represent trend in 3-D Work is easy to interpret. Key is included. Table is creative, visually interesting, easy to interpret 3-D Table 0 1 2 3