Astronomy Cast 323: Isotopes

Article written: 25 Nov , 2013
Updated: 28 Dec , 2015
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The number of protons defines an element, but the number of neutrons can vary. We call these different flavors of an element isotopes, and use these isotopes to solve some challenging mysteries in physics and astronomy. Some isotopes occur naturally, and others need to be made in nuclear reactors and particle accelerators.


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