Review of Atomic Structure

1. Review of Atomic Structure 1) Draw and label a Borh diagram for Carbon – 13 2) What element does the Borh diagram to the right represent?

2. The Periodic Table

3. Periodic People • With your partner, answer the questions • Then, draw what you think missing people would look like • You have 5 minutes

4. Periodic People • What do the periodic people have to do with anything?! • The periodic people display trends, just like the actual periodic table!

5. Trends of the Periodic Table • Periodic Law • the physical and chemical properties of the elements recur in a systematic and predictable way • Because the table is arranged in periods, similarities occur periodically • So what?!

6. Trends of the Periodic Table • Groups (AKA Families) • Columns of the periodic table • Have similar chemical and physical properties • Ex. Gold, Silver, Bronze? • WHY? • Same amount of electrons in valence shell • The actions of electrons are generally responsible for the reactivity of elements

7. Groups of the PT • Alkali Metals – Group 1 • Silvery Colour • Shiny • Very Soft • Highly Reactive • React aggressively with water

8. Video of Alkali Metals

9. Groups of the PT • Alkaline Earth Metals – Group 2 • Silvery-white colour • Soft • Found in earth’s crust • Highly Reactive • Relatively rapidly react with water

10. Video on alkaline earth metals

11. Group of the PT • Halogens – Group 17 • Extremely Reactive • All diatomic molecules X2 (Ex. Cl2, I2) • React with alkali and alkine earth metals to form halides • F, Cl, Br are all poisonous in gas form • Cl2 used in WWII

12. Groups of the PT • Noble Gases – Group 18 • Filled valence shell • Inert, do not react (Although there are exceptions!) • All gases

13. Light Bulb Demo

14. Try filling out your worksheet!