Anthony+Cavallo

 ** Lead & Such ** 
 * [[image:http://1.bp.blogspot.com/_t3Slirynh-M/S8IRAu_qHNI/AAAAAAAAAyc/_bReqyaTdTc/s1600/LeadChemicalSymbol.jpg height="172" align="left" caption="external image LeadChemicalSymbol.jpg"]] Atomic #: 82 **
 * Mass #: 207 **
 * Group #: 14 **
 * No group name **
 * Period #: 6 **
 * Lead is the last element in the periodic table that is not considered to be radioactive. Lead is in group number 14 which includes the elements Carbon, Silicon, Germanium, and tin as well as lead. Lead has 4 valence electrons and is the last stable element in the periodic table. **

** Lead & Such is the best place to purchase this element. You can buy the lead as a raw material or as a pre-made lead vest. Our lead vests are the most protective in the industry in preventing radiation. ** 
 * Some common uses of lead are in batteries and food cans. Lead used to be used widely in pencils. Today however, it has been replaced with graphite. Lead is still used greatly today as a radiation shield. **
 * Because of the largeness of the lead atoms and the close spacing of the atoms, combined with the low cost, lead is and ideal radiation shield. So come on down to Lead & Such and purchase the best lead in the business. **


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1. Look at your notes, text, or Internet to find out what these four terms mean: Physical Property, Chemical Property, Physical Change, Chemical Change 2. Find and copy 4 pictures to your : 1 showing a physical property, 1 showing a chemical property, 1 showing a physical change, 1 showing a chemical change. 3. Place the images on your wiki page under the heading "**ASSIGNMENT 1: Physical and Chemical Properties and Changes**" and include a 1-2 paragraph explanation like my example below.
 * **ASSIGNMENT 1: Physical and Chemical Properties and Changes**
 * Note: each image is worth 3 points and each correct sentence is worth 2 points for a total of 20 points**.

A physical property of this boat would be the color. || ||
 * Physical Property:
 * A physical change to the boat would be if the boat was painted a different color. This is a physical change because the metal is still the same substance even when the color is altered. A physical change is anything that can be changed without changing the actual substance of the object. || [[image:http://www.wikispaces.com/i/editor/insert_table.gif width="33" height="32"]][[image:http://www.snowmobileforum.com/attachments/watersports-forum/1415d1110913630-my-boat-s-ken-boat.jpg width="364" height="204"]] ||


 * A chemical property of this nail would be the rust on it.

The nail rusting is an example of a chemical change. It is a chemical change because oxygen is reacting with iron to form a new substance; rust. (O2 + 4 e- + 2 H2O → 4 OH)- || || YOU'RE AMAZING AND I LOVE YOU SO MUCH <3333333333333333
 * || [[image:http://static.howstuffworks.com/gif/acid-rain-1a.jpg width="349" height="452"]] ||