![]() Number of Isotopes |
This is the number of naturally occurring isotopes (forms of the element with different numbers of neutrons in the nucleus). Only isotopes that are used to calculate an element's Atomic Mass are counted. Number of Isotopes were obtained from the 81th edition of the CRC HANDBOOK OF CHEMISTRY AND PHYSICS, D. R. Lide, Ed., CRC Press, Inc., 2000. Data from the CRC HANDBOOK OF CHEMISTRY AND PHYSICS was collected online at: http://www.knovel.com/knovel2/Toc.jsp?BookID=34 (accessed July, 2002) |