Cite
 

columbium

columbium kəlŭm´bēəm [key], symbol Cb, former name of the chemical element niobium .

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

See more Encyclopedia articles on: Compounds and Elements

Browse by Subject

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.