1. by Kristanna Williams

2.  Octet rule, in most chemical reactions, atoms tend to match the s and p electron configuration of the noble gasses which is the octet rule  Ion, a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons  Anion, is an negatively charged ion.  Cation, is a positively charged ion. Key terms

3. For nonmetals the greater the number of electrons already in the outer shell the more reactive that element will be. If a nonmetal has seven outer shell electrons it will only need to gain 1 electron to reach its octet. This nonmetal will be more reactive than a nonmetal that must gain two or more electrons If a nonmetal has 8 electrons already in the outer shell there they are apart of the noble gasses.

4.  Lattice energy -is the energy that is released when a ionic bond are formed.  Crystal lattice- is a pattern that the crystals are formed.  Unit cell- the smallest type in a crystal lattice is called a unit cell.

5. http://www.google.com/imgres?imgurl=http://www. uwec.edu/boulteje/Boulter103Notes/30October_files/ image033.jpg&imgrefurl=http://www.uwec.edu/boul teje/Boulter103Notes/30October.htm&usg=__TEopLO aiFTFGtZ46hY1iANgpNmw=&h=640&w=864&sz=69&h l=en&start=9&zoom=1&um=1&itbs=1&tbnid=TDlCjsH 3CrDE8M:&tbnh=107&tbnw=145&prev=/images%3Fq %3Dlattice%2Benergy%26um%3D1%26hl%3Den%26t bs%3Disch:1&ei=6sFCTYjKE8GB8gbOrNC3AQ http://en.wikipedia.org/wiki/Lattice_energy Meyers, R Thomas,et al chapter 2 holt chemistry pg 156- 176. Austin tx.reinsert and Winston, 2004