Periodic Table and Representative Elements Exploration

1. Important Dates • Projects Due • Research = Tuesday 12/11 • Project = Tuesday 12/13 • Unit Test • Monday 12/16

2. ActivatorWrite and answer the question in your notes section: • The two rows on the most bottom part of the periodic table have been “pulled out: of order. • Why are these rows pulled out of the main periodic table?

3. SPS4: Students will investigate the arrangement of the Periodic Table b. Use the periodic table to predict the above properties for representative elements EQ: What are the representative elements and their location on the periodic table?

4. Metals, Nonmetals, Metalloids • Metals - conductors of electricity, luster, malleable, reactive, solids • Nonmetals - not conductors of electricity, reactive & non-reactive, gases, liquids and solids • Metalloids - semiconductors, solids

5. 8 types of Representative Elements • Alkali metals • Alkaline Earth Metals • Transition Metals • Metalloids • Halogens • Nobel Gases • Lanthanide/Actinides • Synthetics

7. Alkali Metals • Group 1 Li, Na, K, Rb, Cs, Fr • Highly reactive with water, can burn in air • Soft, shiny gray • True metals

8. Alkaline Earth Metals • Group 2 Be, Mg, Ca, Sr, Ba, Ra • Harder, denser, stronger than alkali metals • True metals

9. Transition metals • Found in middle of chart • Familiar metals; not as reactive as true metals • Groups 3 to 12

10. Metalloids • Have properties of metals and nonmetals • Found along “stair-steps” • Aka: semiconductors, semimetals. • Used in computer chips, can “print” electric circuits • Ex: silicon

11. Halogens • Found in group 17 F, Cl, Br, I, At • Gases (Br liquid) and highly reactive • Like to react with metals from groups 1 & 2

12. Nobel Gases • Group 18 He, Ne, Ar, Kr, Xe, Rn • Inert gases - aren’t reactive with other elements

13. Lanthanides and Actinides • Found “pulled” out on the periodic chart • Used in TV, computers • Radioactive and used in nuclear energy plants and for bombs

14. Synthetic Elements • Produced in laboratory • Technetium and Promethium • Used in “xray” machines

15. Summarizer • Use your foldable to answer the questions on the handout. • Answer on a separate piece of paper. • PUT IN TOD BOX as you leave. • !

16. Go to the following site: • Tiny URL: http://tinyurl.com/yllemhk

17. SPS4: Students will investigate the arrangement of the Periodic Table b. Use the periodic table to predict the above properties for representative elements EQ: What are the representative elements and their location on the periodic table?

18. With Eight Representative Elements

19. Activator: Use Representative Elements to Complete the BRACE MAP: 1. Alkali 2. Alkaline Earth 3-12. Transition 4. Lanthanide/Actinide METALS METALLOIDS Along Stair Case -Metalloids NON- METALS 17. Halogens 18Noble Gases

22. Metalloids B Si Ge As Metals Sb Te Po METALS

23. = Element Symbol How many elements = _____ NO SYNTHETICS The Periodic Table of Elements

25. Go to google.com and type • Get Organized A Periodic Table WebQuest • Click on the Doc. Link • Use the links in the document to get to the site(s) to use to complete the packet. • http://education.jlab.org/elementmath/index.html