Elements
- 1
- Chemistry Resources: Alkali Metals
- Brief profiles and pictures of each of the alkali metals, and the characteristic flame colors for their compounds.
- 2
- Doc Brown's Chemistry Clinic: The Halogens
- Includes an overview, general properties, reactivity trends, and information about the industrial electrolysis of sodium chloride solution.
- 3
- The Chemistry of the Halogens
- Covers their properties, methods of preparation, general trends, the hydrogen halides, and oxyacids of the halogens and their salts.
- 7
- ChemcialElements.com : Non-Metals
- Gives a brief description on the properties of Nonmetals, as well as links to the sites of each of the elements in that category.
- 9
- Wikipedia: Transition metal
- Overview of the group incluging electronic configuration, properties, oxidation states, and specific properties.
- 12
- WebElements: Actinium
- Extensive information on history, uses, occurrence, compounds, and properties.
- 13
- Wikipedia: Actinium
- Details the properties of the element, including its history, applications, and characteristics.
- 17
- WebElements: Aluminum
- Extensive information on history, uses, occurrence, compounds, and properties of the element.