N.+Swanson+and+N.+Sherman+Power+Point

=**Radiation**= __By: Nick Swanson and Nick Sherman__

===**About Radiation**=== Radiation is the process in which energy is emitted as particles or waves. Many people have received countless diseases such as cancer because of radiation. For example, the Hiroshima and Nagasaki bombings have killed people not by the explosion, but with the radiation that follows. There are two types of radiation: ionizing, which is the most common, and non-ionizing radiation, depending on its effect on atomic matter. However, there are 5 type of decay or emissions, which are the topics of this powerpoint.

**Alpha Emission**[[image:http://physics.unco.edu/sung/sci103/nuclear/alpha_decay.gif width="287" height="146" align="right" caption="Alpha Decay of Americium-241 to Neptunium-237"]]

 * causes a nucleus to emit a helium proton
 * which leads to two fewer protons and neutrons
 * the atomic number declines by two and the mass number by four
 * occurs when there is a proton overload.

**Beta Emission**[[image:http://physics.unco.edu/sung/sci103/nuclear/tritium_decay.gif width="324" height="140" align="right" caption="Beta Decay of Hydrogen-3 to Helium-3"]]

 * neutron in a radioactive nucleus converts into a proton and an electron, which forces it to emit the electron
 * leads to one more proton and one fewer neutron in the nucleus
 * atomic number increases by one, but the mass remains the same

**Positron Emission**[[image:http://physics.unco.edu/sung/sci103/nuclear/positron_decay.gif width="319" height="147" align="right" caption="Positron Decay of Carbon-11 to Boron-11"]]

 * occurs when the neutron to proton ratio is too small
 * proton turns into a neutron, which then turns into a positron which is emitted
 * positron is a positively charged electron

**Electron Capture**[[image:http://physics.unco.edu/sung/sci103/nuclear/electron_capture.gif width="317" height="157" align="right" caption="Electron Capture of Beryllium-7"]]

 * occurs when proton ratio in nucleus is too small
 * turns proton into neutron

**Gamma Emission**[[image:http://physics.unco.edu/sung/sci103/nuclear/gamma_decay.gif width="317" height="137" align="right" caption="Gamma Decay of Helium-3"]]

 * occurs when the nucleus' energy is too high
 * nucleus' energy goes down
 * emits high energy proton aka gamma particle

**Conclusion**
There are 2 different types of radiation and 5 types of decay emmisions that we know of. All these different types of decay emmissions have one thing in common. That is that there is an unstable nucleus that shoots off protons that are very dangerous to humans. These protons that are getting shot off cause diseases such as cancer. When radiation decay emmisions occur, some times wierd things happen with the protons, neutrons, or electrons. One instance is when u have too many protons and not enough neutrons. When this happens, protons become neutral charged to try to balance things off and then the atom emmits these particles called positrons that are actually electrons, with a positve charge.

[|http://physics.unco.edu/sung/sc103/nuclear/radioactivedecay.htm] www.wikipedia.org www.cartage.org www.dictionary.com
 * Bibliography**