1. Elements and The Periodic Table http://www.youtube.com/watch?v=d0zION8xjbM&feature=related

2. Amazing! http://www.youtube.com/watch?v=zUDDiWtFtEM

3. Metals -left of the staircase -good conductors of heat/electricity -ductile and malleable -shiny and usually silver coloured -all solid except mercury (liquid)

4. Non-metals -right of the staircase -poor conductors of heat/electricity, solids, some are gases and one (bromine) is a liquid Metalloids -touch the staircase except Aluminum (metal) -properties are a mix of metal and non- metal properties

5. Metals/Nonmetals and Metalloids

6. Since they have the same number of valence electrons

8. Pattern for the Number of Valence electrons Periodic table families

9. Hydrogen (A class of it’s own) Physical properties of non- metals but chemical properties of metals

10. Group 1: Alkali Metals 1 valence electron (electrons in their outermost shell) Soft, shiny, solids at room temperature that can easily be cut with a knife The most reactive metals React violently with water (stored in oil or a vacuum) React with halogens to form salts

11. Group 2: Alkaline Earth Metals 2 valence electrons Light, reactive metals, solids at room temperature React with oxygen to form oxides React with hydrogen to make hydride (except Be) React with water to release hydrogen gas

12. Groups 3-12: Transition Metals Usually multivalent Strong, hard metals, high melting points Good conductors of heat and electricity Most react with oxygen to make oxides some react with acids to release hydrogen gas Wide range of chemical and physical properties

13. Group 17: Halogens 7 valence electrons May be solids/liquids/gases at room temperature Dull and do not conduct electricity Extremely reactive nonmetals (reacts with hydrogen and other metals)

14. Group 18: Noble Gases Full outer shell Extremely unreactive (inert) Gases at room temperature with low melting/boiling points Kr, Xe, Rn can be forced to make compounds with F Rn is radioactive

15. Lanthanides (Rare Earth Metals) Elements 57-70

16. Actinides Elements 89-102 Transuranic Elements: Synthetic (not naturally occurring) elements (elements 93+)

17. Representative Elements Elements from Group 1-2 and 13-18 Many form colourful compounds

18. Lewis Dot Symbol Lewis dot diagram- shows only the valence electrons (place an electron in each direction then double up if there are more than four)

19. Practice! P. 33 #1-6 http://www.youtube.com/watch?v=zGM-wSKFBpo&feature=related http://www.youtube.com/watch?v=v1TfPDlA1xE