Chemicool was created by David D. Hsu. of the Massachusetts Institute of Technology in 1996. Contributors include Cabrol D.; Moore J. W and Kotz J. C.
The Perkin-Elmer Periodic Table v2.02g was used for Atomic mass, density, volume, group, heat of fusion, heat of vaporization, specific heat, and shells.
WebElements (网上元素周期表 - 元素知识库)
Summary by 李晓霞 on 2006-03-17
Last updated by 李晓霞 on 2006-03-17