1. Radiation! Alex Light

2. Table of Contents: 1. Alpha Emission 2. Beta Emission 3. Positron Emission 5. Electron Capture 6. Gamma Emission 8. Conclusion 9. Pros and Cons 10. Bibliography

3. Alpha Emission When a nucleus emits an alpha particle (identical to a helium nucleus) thus making itself less unstable.

4. Beta Emission Basically a neutron in the atom becomes a proton and electron, but the proton being positive (and larger) throws the negative electron out of the atom.

5. Positron Emission A positron emission is when a positron is emitted from a nucleus, after a proton is converted to a neutron. go figure!

6. Electron Capture This happens when an electron is absorbed by a proton, causing it to become a neutron.

7. Gamma Emission A gamma emission is when the slight excess of energy from another emission is converted to gamma rays, and ejected along with it.

8. Conclusion All radiation is the ejection of particles in order to stabilize the atom. Stabilization means the atom transforms into a different isotope.

9. Pros and Cons Pros X-rays for bones Cancer treatments Cons Cancer Nuclear bombs (debatable)

10. Bibliography (people who did the work) http://www.bcpl.net/~kdrews/nuclearchem/nuclear.html for Alpha, Beta, and Gamma Emission http://www.bcpl.net/~kdrews/nuclearchem/nuclear.html http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/radact2.html for electron capture http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/radact2.html http://www.nmr.mgh.harvard.edu/martinos/research/technologiesPET.php for positron emission http://www.nmr.mgh.harvard.edu/martinos/research/technologiesPET.php Wikipedia for all the pictures. Except positron emission http://depts.washington.edu/nucmed/IRL/pet_intro/intro_src/fig1_small.JPGhttp://depts.washington.edu/nucmed/IRL/pet_intro/intro_src/fig1_small.JPG Electron capture http://www.euronuclear.org/images/elektroneneinfange.jpghttp://www.euronuclear.org/images/elektroneneinfange.jpg And gamma emission http://www.euronuclear.org/info/encyclopedia/images/ang_zue.jpg