Wikipedia:Today's featured article/February 28, 2004

Revision as of 08:37, 7 August 2004; view current revision
←Older revision | Newer revision→

The periodic table of the chemical elements is a display of known chemical elements arranged by electron structure. The German Lothar Meyer and the Russian chemist Dmitry Ivanovich Mendeleev almost simultaneously developed the first periodic table by arranging the elements by atomic mass.

Archive – More featured articles ...