Columbia Encyclopedia
Search results
500 results found
La, chemical symbol
(Encyclopedia)La, symbol for the element lanthanum. ...Po, chemical symbol
(Encyclopedia)Po, symbol for the element polonium. ...Cd, chemical symbol
(Encyclopedia)Cd, symbol for the element cadmium. ...Tb, chemical symbol
(Encyclopedia)Tb, symbol for the element terbium. ...Ra, chemical symbol
(Encyclopedia)Ra, symbol for the element radium. ...Re, chemical symbol
(Encyclopedia)Re, symbol for the element rhenium. ...Si, chemical symbol
(Encyclopedia)Si, symbol for the element silicon. ...Copper Age
(Encyclopedia)Copper Age: see Bronze Age.copper pyrites
(Encyclopedia)copper pyrites: see chalcopyrite. ...copper sulfate
(Encyclopedia)copper sulfate, common name for the blue crystalline heptahydrate of cupric sulfate, in which copper has valence +2. It may also refer to cuprous sulfate (Cu2SO4), in which copper has valence +1. ...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 +-
