Nuclear

toc =Nuclear Files=

Videos:
Kinetics of nuc decay || || Nuclear bombs ||  ||
 * Balancing nuclear rxs
 * Fission and fusion

Notes:

 * When you have to find how much of a element decays, I like the following formula: **
 * The time given divided by the half life time = the # of half lives. Then take the given mass (or number of atoms) and divide by 2^the number of half lives. **


 * When you have simpler problems like when is 1/4 of the radioactive material decayed look at this pattern: **
 * Assume that the material has a 2 day half life (could be any time period) and you start with 16 grams of material. **
 * = ** Time **
 * passed ** ||=  ||= ** The amount of **
 * radioactive substance ** ||=  ||= ** The fraction **
 * decayed ** ||=  ||= ** The amount of non **
 * radioactive material ** ||=  ||= ** The Fraction **
 * not radioactive ** ||
 * = 0 days ||=  ||= 16 g ||=   ||= all ||=   ||= 0 ||=   ||= none ||
 * = 2 days ||=  ||= 8 g ||=   ||= 1/2 ||=   ||= 8 g ||=   ||= 1/2 ||
 * = 4 days ||=  ||= 4 g ||=   ||= 1/4 ||=   ||= 12 g ||=   ||= 3/4 ||
 * = 6 days ||=  ||= 2 g ||=   ||= 1/8 ||=   ||= 14 g ||=   ||= 7/8 ||
 * = 8 days ||=  ||= 1 g ||=   ||= 1/16 ||=   ||= 15 g ||=   ||= 15/16 ||


 * For Decay Constant Problems **
 * You can use this graph to determine the time it take for activity to take place.**
 * One curie = 3.7 X 10 ** 10 ** decays/sec **