3. usually composed oppositely charged metallic cations and nonmetallic anions that form ionic bonds + cations - anions

4. Na “gives” Cl one electron and now both atoms have a full valence shell (electron configuration of a noble gas)

5. Na 1+ + F 1-  NaF

6. shows the kinds and numbers of atoms in the lowest whole-number ratio of ions in the ionic compound Na 1+ + Cl 1-  NaCl Ca 2+ + 2(Cl 1- )  CaCl 2 Mg 2+ + O 2-  MgO

10. Mg and N? it takes two nitrogens to combine with three magnesiums Mg 3 N 2 magnesium nitride

12. form crystal lattices at room temperature (repeating three dimensional patterns) the coordination number of a ion is the # of ions that surround an ion with the opposite charge

13. high melting points can conduct electric currents when melted or dissolved in water will shatter if impacted or crushed

14. http://www.seas.upenn.edu/~chem101/sschem/bravais.gif

15. http://www.tufts.edu/as/engdept/resources/Prof_Pages/im ages/crystals.jpg

16. valence electrons are like a “sea of electrons that can drift freely bonds result from the attraction between these electrons and the positively charged metal ions

17. Therefore metals have the following characteristics….

18. http://images.google.com/imgres?imgurl=http://www.mykonosbeads.com/images/nickel_findings.jpg&imgrefurl=http://www.mykonosbeads.com/docs/meta l.htm&h=375&w=342&sz=26&tbnid=Dql2VD8x0vgJ:&tbnh=118&tbnw=107&hl=en&start=21&prev=/images%3Fq%3Dmetal%2Bjewelry%26start%3D20%26sv num%3D10%26hl%3Den%26lr%3D%26sa%3DN

19. http://www.hearthsong.com/assets/images/hearths ong/images/shop/catalog/724137.jpg

20. http://lib1.store.vip.sc5.yahoo.com/lib/bettercablesdotcom/conductivity.jpg

21. http://www.petcremationnevada.com/images/glassceramicImpression.jpg

22. mixtures composed of two or more elements (at least one is a metal) properties superior to those of their component elements -stronger / harder -more lustrous -more conductive -more resistant to corrosion

23. Sterling Silver ------ Cast Iron ----------- Stainless Steel ---- Bronze ------------- Ag (92.5%) Cu (7.5 %) Fe (96%) and C (4%) Fe (80.6 %), Cr (18%), C (0.4%), Ni (1%) Cu (86%) and Sn (14%)