Isotopes


content.gif (1503 bytes)
 Code Number :   7D10.17

Disclaimer:

Reprinted by permission of Dick Berg, University of Maryland, for use on this website.

The demonstrations contained and referenced herein are listed for the purposes of cataloging and describing physics demonstrations which should be conducted only under the direction of a trained instructional support professional or physicist. These demonstrations are not presented for the purpose of being conducted by persons unconnected to this Facility and/or persons not consulting with or being supervised by the recognized instructional support professional or physicist and his/her staff. The University is responsible only for those demonstrations carried out using its own equipment using established safety and scheduling policies, and bears no responsibility for those choosing to use this source material for their own purposes. All demonstrations described and contained herein are public domain, and can also be found in reference materials in libraries, bookstores, and electronic sources.

Further information regarding legal liability in use of demonstrations and labs will be found on the web site Injuries in School/College Laboratories in USA.

The University of Iowa Disclaimers:  University of Iowa Disclaimer All Rights Reserved..

Condition :   Excellent  
Principle :   Elemental Isotopes
Area of Study :  Modern Physics   
Equipment :   Pre-1982 pennies, post-1983 pennies
Procedure :   Pre-1982 pennies have a mass of about 2.51 grams.  The post-1983 pennies will have a mass of about 3.10 grams.  Place some of each kind of penny into a container and weigh.  Formulate a procedure to determine the amount of each isotope present. 
conbot.gif (53 bytes)

 

   Websites

"Table of Nuclides", http://atom.kaeri.re.kr/


   References
Ralph E. Weston, Jr., "A Boatload of Pennies",  TPT, Vol. 40, # 7, Oct. 2002, p. 392.

Haym Kruglak, "Watch Your Pennies! - A Correction", TPT, Vol. 29, # 5, May 1991, p. 262.

Terrence P. Toepker, "More Physics Cents", TPT, Vol. 29, # 8, Aug. 1991, p. 484.

E. Scott Barr, "The Masses of Coins", TPT, Vol. 21, # 6, Sept. 1983, p. 348.

R.D. Edge, "The Author Replies: It's Not Simple", TPT, Vol. 21, # 6, Sept. 1983, p. 348.

 

Phillip M. Walker and James J. Carroll, "Ups and Downs of Nuclear Isomers", Physics Today, June 2005, p. 39 - 44.

 

Ramsey O. Benavides, "Independent Project: Two Chemistry Experiments on the Subject of Atomic Structure", Apr. 1996.



Mail Questions and Comments to:  Dale Stille