A Brief History of Element Discovery, Synthesis, and Analysis

A Brief History of Element Discovery, Synthesis, and Analysis

By

0
(0 Reviews)
A Brief History of Element Discovery, Synthesis, and Analysis by Glen W. Watson

Published:

1963

Pages:

25

Downloads:

2,888

Share This

A Brief History of Element Discovery, Synthesis, and Analysis

By

0
(0 Reviews)

Book Excerpt

on of electrons, that would make a new element. Trials by Fermi and his co-workers with various elements led to unmistakeable evidence of the expulsion of electrons (beta activity) with at least four different rates of decay (half-lives). Claims were advanced for the creation of elements 93 and 94 and possibly further (the transuranium elements, Table I). Much difficulty was experienced, however, in proving that the activity really was due to the formation of elements 93 and 94. As more people became interested and extended the scope of the experiments, the picture became more confused rather than clarified. Careful studies soon showed that the activities did not decay logarithmically--which means that they were caused by mixtures, not individual pure substances--and the original four activities reported by Fermi grew to at least nine.

As a matter of fact, the way out of the difficulty had been indicated soon after Fermi's original announcement. Dr. Ida Noddack pointed out that no one

FREE EBOOKS AND DEALS

(view all)
Christine Miles - Brains, Quips, and a Fair Amount of Brawn
FEATURED AUTHOR - Christine Miles is a full-time writer living in Albuquerque, New Mexico. An avid reader and writer since elementary school, her passion for literature inspired her to pursue a BA in English and an MA in Creative Writing. She writes YA and Adult Contemporary Romances with sassy, independent heroines and swoony heroes who love them for their strength. When not writing romances, she loves traveling, binge-watching shows on streaming apps, reading mysteries and thrillers, listening to music, and… Read more