Physical Science Activities Manual ________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________ Center of Excellence for Science and Mathematics Education at The University of Martin CLASS RESPONSE / CONCEPT INVENTION A. In the exploration activity above, the time to use up half of the money was imposed on you for the exercise (one day). We would now like to determine what this "half-life" for some other activity is experimentally. B. Isotopes of various atoms undergo a totally random phenomenon known as radioactive decay. One can not predict when any single atom will undergo decay, however, for a large number of atoms the "half-life" can be determined. The "half-life" is the amount of time that it would take for half of the atoms we start with to undergo their random decay . C.
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This note was uploaded on 02/17/2012 for the course CHM 4410 taught by Professor Dr.kroto during the Fall '10 term at FSU.