Chart for gaseous state elements intended for research on chlorofluorocarbons; and environmental and health effects.

Appendix on the element’s properties. Information apprised for use by students and educators globally.

Guide to its properties, uses, sources, periodic table location, discovery and numerical basis.

Discusses the history, fundamentals and uses of the element. With links for educators and students.

Abridged information on the element’s history, isotopes and uses done by government-run laboratories.

Updated data, properties, compounds, uses, image, books and related merchandise on the element.