The name given to element 43, now known as technetium, by the German chemist Ida Tacke Noddack, when she claimed to have isolated it in 1925. She was mistaken.
| home | | | nature index | | | search | | | your comments  | | | about | | | help | | |
Copyright © 2001 Sizes, Inc. All rights reserved.
Last revised: 28 December 2001.