Chapters30&31

Chapters30&31 - Chapters30&31...

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Alta Physics Nuclear Physics: Radiation,  Radioactivity & its Applications
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Alta Physics Nuclear Energy The Nucleus of an atom contains  Protons – Positively Charged Neutrons – no charge Atomic Mass Number – denoted by the letter  A, this number represents the total number of  protons + neutrons in the nucleus, telling you  what isotope of the element you have. Atomic Number – denoted by the letter Z, this  number represents the number of protons in  the nucleus, telling you what element you  have.
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Alta Physics Nuclear Energy Atomic Symbol for a  given isotope of an  element is generally  given as noted to  the right. A prime example is  an alpha particle or  helium nucleus X A Z He 4 2
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Alta Physics Nuclear Reactions Two Types of Nuclear reactions  produce vast amounts of energy  according to Einstein’s famous equation E = mc 2 Fission – the splitting of an atom into  smaller parts Fusion- the joining of two small nuclei to  produce one larger nucleus
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Alta Physics Nuclear Reactions Mass defect – is the amount of mass that is  converted to energy during fission or fusion. Calculation of Mass defect is the difference  between the actual mass of the atom and the  known mass of each of its parts The amount of energy that this mass is  converted into is called the  binding energy
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Alta Physics Sample Problem Calculate the mass defect and energy released in the creation  of Carbon-13. Solution
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Chapters30&31 - Chapters30&31...

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