Important Dates Projects Due Research Tuesday 1211 Project

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

Activator Write 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?

SPS 4: 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?

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

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

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

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

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

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

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

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

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

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

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. • !

Go to the following site: • Tiny URL: http: //tinyurl. com/yllemh k

SPS 4: 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?

With Eight Representative Elements

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

Metalloids B Si Ge Metals As Sb Te Po METALS

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

Go to google. com and type • Get Organized A Periodic Table Web. Quest • 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/inde x. html