radioelements

In contrast to the traditional view of a fixed element, a stable state in radioelements could be attained only when the final product was not radioactive.

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007

By the end of the 1910s, a considerable number of chemically non-separable pairs or groups of radioelements had begun to accumulate very rapidly.

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007

Built as a separate building from the physics and chemistry institutes, the Radium Institute legitimized research on radioelements as a scientific specialty, which was still dependent on physics and chemistry.

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007

This resulted in the fact that the radioelements produced from the emissions had the same chemical properties as their parents, although they possessed different atomic weights.

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007

As Lawrence Badash describes, because some of the experiments required chemical separations of radioelements, the physicist Ernest Rutherford "secured the services of a young demonstrator in the chemistry department, named Frederick Soddy."

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007

The development of new technologies such as the particle accelerators and experiments for the production of artificial radioelements or radioisotopes with these new machines forced radium into disuse.

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007

Thus, the most fundamental effect of radioactivity on chemistry was the redrawing of the periodic table in such a way that could fit the radioelements 'changing the primary ordering that was now not the atomic weight anymore but the atomic number of the elements.

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007

If it were ever possible to control at will the rate of disintegration of the radioelements, an enormous amount of energy could be obtained from a small quantity of matter.

The Peacetime Applications of Atomic Energy 1955

Thus the chemical individuality of radium was completely established, and the reality of radioelements was a known fact about which there could be no further controversy.

Pierre Curie 1923

68In 1913, Soddy succeeded in placing all the known radioelements in the periodic table, despite the fact that there were more of them than places available.

Trafficking Materials and Gendered Experimental Practices: Radium Research in Early 20th Century Vienna 2007