1. Periodic Table – Elements Elements are pure substances made up of atoms that cannot be broken down. These Elements are categorized by characteristics as: Metals Semi Metals or Metalloids Non-Metals – Gases

3. Characteristics of Metals Metals have few electrons in their outer energy level Metals are solid at room temperature except Mercury which is a liquid

4. Characteristics of Metals cont... Metals are good conductors of heat and electricity Metals are malleable which means they can be flattened into thin sheets Metals are ductile which means they can be drawn into thin wires Metals are shiny https://www.youtube.com/watch?v=c382ziUpbbc https://www.youtube.com/watch?v=kMR5KbNZ7b8

5. I can see that ____________ is a metal Because it has ____________ properties. Gold is a metal because it is __________ Which is a property of Metals. Zinc is a metal because it is _________ Which is a property of metals. Copper is a metal because it is ________ Which is a property of metals

6. Characteristics of nonmetals Nonmetals have almost a complete set of electrons in their outer energy level Nonmetals are mostly gases at room temperature Nonmetals are not good conductors of heat & electricity Nonmetals are not malleable Nonmetals are not ductile – they are brittle and will break or shatter when hit with a hammer Nonmetals are not shiny Nonmetals do not have the characteristics of metals

7. Elemental Oxygen Highly explosive ! https://www.youtube.com/watch?v=R0lWI-bnJVA

8. Characteristics of Semi Metals Metalloids have a ½ complete set of electrons in their outer energy level Metalloids have some properties of metals and some properties of nonmetals.

9. Tellurium-shiny but brittle Silicon-semiconductor Boron-hard but brittle and a good conductor of electricity

10. Nobel gases Noble Gases have a complete set of electrons in their outer energy level – all but Helium have 8. Helium has 2. Noble Gases are gases at room temperature Noble Gases are nonmetals Noble Gases are colorless Noble Gases are odorless Noble Gases are unreactive Noble Gases are found in very small amounts on Earth

12. Is this element Metal, Non-metal or Metalloid (Semimetal) ? Aluminum Tellurium Physical Properties: Conductor Shiny Luster Malleable Non-Magnetic Not Ductile Solid at room temperature Physical Properties: Semiconductor Shiny Luster Brittle Non Magnetic Not Ductile Solid at Room temperature

13. Is this element Metal, Non-metal or Metalloid (Semimetal) ? Copper Germanium Physical Properties: Conductor Orange Luster Malleable Not Magnetic Ductile Solid at room Temperature Physical Properties: Semiconductor Shiny Luster Brittle Not Magnetic Not Ductile Solid at Room temperature

14. Sulfer Chlorine No conduction Yellow Color Brittle Non Magnetic Not Ductile Solid @ room temperature No Conduction Yellow Green Color No Brittle / Malleable Not Magnetic Not Ductile Gas at room Temp Is this element Metal, Non-metal or Metalloid (Semimetal) ?

15. Monday October 5, 2015 How are compounds formed?

16. What is a molecule? A molecule is a combination of 2+ atoms that make a larger particle. It is held together by chemical bonds. The atoms might be the same or they could be different. A molecule is not always a compound.

17. What is a compound? DIFFERENT A compound is a substance that is made up of 2 or more DIFFERENT elements Compounds are ALWAYS a molecule.

18. CompoundElement property Element property Common Compound Property H20H20 H= gasO= gas liquid NaCl Na=dangerous metalCl=dangerous nonmetal NaCl=table salt (eat it!) Properties of the compound are different than the properties of the elements that make them up.

19. For a compound to be formed a chemical reaction must take place. This is when 2 elements or molecules are rearranged through a chemical process to form something NEW and DIFFERENT!

20. Mixtures A mixture refers to the physical combination of two or more molecules. The air we breath is a mixture.

21. Molecule Element Atoms Made up of multiple molecules

22. Element Present Is it a Molecule, Compound Molecule 0r Element 1.) 2) 3) 4) 5) Nitrogen (N) Oxygen (O) Molecule Neon Element Carbon Dioxide Argon Compound Molecule Element Molecule Compound Molecule Sulfer Dioxide Hydrogen

23. What Element (s) is/are Present Is it a Molecule, Compound Molecule, or Element 1.) 2.) 3.) 4.) 5) 6.) 7) 8) 9) 10) Ozone (O 3) Methane CH 4

24. Write Example in the bubble map of each class of substances.