1. Chapter 6 Review

2. History of periodic table –Mendeleev, Moseley Parts of periodic table –periods (1-7) (including rare-earth) –families, groups, columns (18) specific names or named for 1 st element –alkali, earth-metals, halogen, noble gases –metal, transition metals, nonmetals, metalloids

3. How to use the periodic table How to read information on element square Number of valence electrons –electrons in energy levels Properties are similar in families Know common element symbols –hydrogen, boron, carbon, nitrogen, helium, calcium, aluminum, nitrogen, oxygen, sodium

4. Know characteristics of elements density melting point luster gain or lose electrons conductor of heat and electricity interacts with O 2 malleable or brittle