Radioactivity activity

Radioactivity activity - Radioactivity Why? Not all...

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Radioactivity Why? Not all elements and isotopes are stable. Radioactivity is the spontaneous emission of particles or energy from the nucleus of an unstable isotope. Such isotopes are called radioisotopes . Nuclear chemistry is the subdiscipline of chemistry that studies nuclear reactions and uses them in research, technology, and medicine. An understanding of nuclear chemistry is essential in discussing issues associated with radioactivity, nuclear power generation, disposal of radioactive waste, and the intelligent use of radiation in medicine. Learning Objectives Students should be able to … Describe what happens in the radioactive decay of an isotope Write correct nuclear reaction equations to describe how nuclei change by fission, fusion, and the emission or capture of particles. Information In writing and interpreting nuclear reactions, it is important to use complete atomic symbols. Recall that a complete atomic symbol includes the symbol for the element, a left superscript for the mass number (A), and a left subscript for the atomic number (Z). ± ² Some examples are: ³ ´ µ¶ , ³, · µ µ , · µ ´ µ¸ Review Questions 1. What information is provided by the atomic number, Z? 2.
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This note was uploaded on 10/11/2011 for the course CHEM 012 taught by Professor Mounaamaalouf,reneescole, during the Spring '11 term at Iowa State.

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Radioactivity activity - Radioactivity Why? Not all...

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