PHYS 1010Q Lecture Notes - Lecture 38: Pleistocene, Nuclear Medicine

• School: UConn
• Department: Physics
• Course: PHYS 1010Q
• Professor: Barrett Wells

Document Summary

Phys-1010q - lecture 38 - the nucleus (chapter 25) Same seat assignments as exam 2 and exam 3. Review thursday, december 14th at 10:00 am (pb36) Half life = time for one half of the atoms in a radioactive sample to decay. The quicker the half life, the faster the atoms are decaying original amount where n = number of half lives. If you start with 1 kg, how much is left after 3 half lives? (4,860 years) After 1 half life, kg is left. After 2 half lives, kg is left. After 3 half lives, kg is left. Suppose you initially have 16g of na-24 which has a half life of 15 hours. How much of the radioactive sodium will remain after 4 half lives (60 hours): 8 g, 4 g, 1 g , 0. Is created in the atmosphere. half life = 5730 years.