BiggleMan
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| Joined: 02 Sep 2013 |
| Total Posts: 20418 |
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Gaomon94
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| Joined: 22 Oct 2007 |
| Total Posts: 74936 |
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| 09 Sep 2014 12:26 PM |
| https://www.youtube.com/watch?v=qnRKNRIkqBk |
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| 09 Sep 2014 12:27 PM |
| Atoms are composed of particles called protons, electrons, and neutrons |
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