S.+Levey+Powerpoint+Presentation

=radiation powerpoint presentation.=

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 * __Outline.__**

In this presentation..

- Alpha Emission. - Beta Emission. - Positron Emission. - Electron Capture. - Gamma Emission.

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 * __Alpha Emission.__**

Alpha emission deals with a radioactive nucleus. It emits two neutrons and two protons. The mass decreases by 4 and the atomic number decreases by 2.





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 * __Beta Emission.__**

Beta emission also deals with a radioactive nucleus. One neutron turns into a proton and an electron and emits an electron particle. The mass stays the same, but the atomic number decreases by one.



//slide five.//
 * //__Positron Emission.__//**

Positron emission involves a proton turning into a neutron. This creates a positron, or a positively charged electron.



//slide six.//
 * __Electron Capture.__**

An inner orbital electron is captured by a necleus and a neutron is formed.



//slide seven.//


 * __Gamma Emission.__**

Gamma rays are produced when nuclear particles undergo transitions in nuclear energy levels.



//slide eight.//
 * __Bibliography.__**

[|bcpl.net/~kdrews/nuclearchem/nuclear.html] www.dbhs.wrusd.k12.ca.us.com ie.lbl.gov/education library.think.quest.org [|www.teach.net.ie]