- Actinides (1)
- Alkali Earth Metals (1)
- Alkali Metals (2)
- Halogens (2)
- Lanthanides (2)
- Metalloids (0)
- Metals (0)
- Noble Gases (2)
- Nonmetals (3)
- Platinum Metals (1)
- Transactinides (2)
- Transition Metals (3)
See also:
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Last update: Apr 28, 2012 18:35:11. Phy.org is a private web site, powered by the Open Directory Project.