2. What is Chemistry? Chemistry Chemistry is the study of matter and how matter changes.

3. What is Matter? Matter Matter is what everything is made of: stuff, material (it has mass and takes up space)

4. How can we tell one type of matter from another? a diamond from a fake?

5. Scientists broke all matter into ATOMS its smallest parts-- ATOMS!

6. Matter made of just one type of ELEMENT atom is called an ELEMENT, and has a unique weight to identify it. You already know many elements! Copper Nickel Aluminum Neon Gold Chlorine

7. When the elements are arranged in order of weight and properties, they form the Periodic Table! * Note how we abbreviate each element?

9. Dmitrii Mendeleev (said Mendelayev) came up with this layout idea in 1872. There are 3 main categories we need to know: Metals, Metalloids, and Non-Metals

10. Metals: Left/Middle of Periodic Table Shiny, metallic Conduct heat and electricity Malleable and ductile (reshape) Copper Nickel Aluminum Gold Silver Mercury

11. Metalloids: Zigzag on Periodic Table where metals and nonmetals meet Mostly shiny, metallic looking Only semi-conductive Often combined with non-metals

12. Non-Metals: Right side of Period Table Not shiny, many are GAS Not conductive at all Crumble or break if solid (non-malleable/ductile) Neon Helium Iodine ChlorineCarbon Sulfur