Columbia Encyclopedia
Search results
500 results found
Si, chemical symbol
(Encyclopedia)Si, symbol for the element silicon. ...Po, chemical symbol
(Encyclopedia)Po, symbol for the element polonium. ...Ra, chemical symbol
(Encyclopedia)Ra, symbol for the element radium. ...Re, chemical symbol
(Encyclopedia)Re, symbol for the element rhenium. ...No, chemical symbol
(Encyclopedia)No, symbol for the element nobelium. ...Og, chemical symbol
(Encyclopedia)Og, symbol for the element oganesson. ...Tb, chemical symbol
(Encyclopedia)Tb, symbol for the element terbium. ...Cd, chemical symbol
(Encyclopedia)Cd, symbol for the element cadmium. ...Lead, city, United States
(Encyclopedia)Lead lēd [key], city (1990 pop. 3,632), Lawrence co., W S.Dak., in the Black Hills; laid out 1876 after the discovery of gold there, inc. 1890. It is the site of the famous Homestake Mine, which was ...lead glance
(Encyclopedia)lead glance: see galena.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 +-