This essay, written for Teachers' Domain, describes the foresight and pattern recognition that Russian chemist Dmitri Mendeleyev used to develop the modern periodic table of elements.

A description of the arrangement of elements on The Periodic Table based on electron configuration.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site focuses specifically on the Periodic Table of Elements with information on the table's organization methods along with...

Learn about the different groups of elements that make up the periodic table and some interesting facts about it.

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses the properties of the atoms individually in relation to the main group elements of the Periodic Table.

Discusses the organization of the periodic table into periods and groups, then looks at where the Lanthanoids and Actinoids are situated, and their properties.

Learn about the characteristics, chemical and physical properties, and uses of halogens.