1. Noble gases By: Marcus Louis-Jeune Per.4 10/21/11

2. The noble gases Helium- Least reactive element Neon- second lightest inert gas. Krypton- highly fluorescent, used in lamps. Xenon- generally unreactive. Radon- occurs naturally as a decaying product of uranium.

3. Helium From the Greek word helios Second lighest element. Used in balloons.

4. Neon Greek for veov which means new one. Its used in a lot of advertisment signs. Second lightest inert gas.

5. Argon Greek for apyov which means lazy. Almost undergoes no chemical changes Argon is produced industrially.

6. Krypton Greek for kryptos which means the hidden one. Can be used in lighting and photography It last 230,000 years.

7. Xenon Greek for xenos which means stranger. First noble gas to be synthesized. Used in lamps.

8. Radon Greek for nintens which means shining. A health hazard due to its high radioactivity. Second most frequent cause of lung cancer.

9. Noble gas video http://www.youtube.com/watch?v=iBlCtkQ6K 0g http://www.youtube.com/watch?v=iBlCtkQ6K 0g