Columbia Encyclopedia
Search results
500 results found
Ac, chemical symbol
(Encyclopedia)Ac, symbol for the element actinium. ...Mace, chemical spray
(Encyclopedia)Mace, chemical spray device used by police in riot control. Mace is ordinary tear gas (chloroacetophenone, or CN) in a volatile solvent contained in a spray can. It causes severe lacrimation and tempo...multiple chemical sensitivity
(Encyclopedia)multiple chemical sensitivity (MCS), adverse physical reaction to certain chemicals in susceptible persons. When exposed to the chemicals, people with MCS react with symptoms such as nausea, headache,...Ga, chemical symbol
(Encyclopedia)Ga, symbol for the element gallium. ...Fm, chemical symbol
(Encyclopedia)Fm, symbol for the element fermium. ...Ar, chemical symbol
(Encyclopedia)Ar, symbol for the element argon.Cs, chemical symbol
(Encyclopedia)Cs, symbol for the element cesium. ...Cn, chemical symbol
(Encyclopedia)Cn, symbol for the element copernicium. ...cobalt, chemical element
(Encyclopedia)cobalt, metallic chemical element; symbol Co; at. no. 27; at. wt. 58.9332; m.p. 1,495℃; b.p. about 2,870℃; sp. gr. 8.9 at 20℃; valence +2 or +3. Cobalt is a silver-white, lustrous, hard, brittle...Am, chemical symbol
(Encyclopedia)Am, symbol for the element americium. ...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
