Encyclopedia of Earth
Encyclopedia of Earth: Rubidium
Information about the element, Rubidium, atomic number 37. Covers physical properties, atomic properties, how abundant it is on the Earth, and details about health-related regulations.
Other
Chemistry Resources: The Elements: Alkali Metals
This subtable lists and describes the six alkali metals of the periodic table of Elements. Related links are provided.
Science Struck
Science Struck: Properties of Alkali Metals
Describes the physical and chemical properties of the six alkali metals.
Science Struck
Science Struck: Uses of Alkali Metals
Lists the properties of the alkali metal group of the periodic table and describes each of the six elements and their uses.
Wolfram Research
Wolfram Science World: Gustav Kirchhoff
This site from ScienceWorld provides a short but factual biographical sketch of the German physicist, Gustav Kirchhoff and describes his most notable discoveries and contributions to the realm of science.