(Ra3N2). All isotopes of radium are radioactive, the most stable isotope being radium-226 with a half-life of 1,600 years. When radium decays, it emits...
77 KB (8,364 words) - 15:56, 9 October 2024
discovery of the elements polonium and radium, using techniques she invented for isolating radioactive isotopes. Under her direction, the world's first...
110 KB (10,195 words) - 09:08, 3 October 2024
generally exist in multiple variants with different masses, or "isotopes". In the 1930s, isotopes would be shown to have nuclei with differing numbers of the...
45 KB (5,455 words) - 05:17, 28 August 2024
from boron, radioactive isotopes of phosphorus from aluminium, and silicon from magnesium. Irradiating the natural stable isotope of aluminium with alpha...
26 KB (2,919 words) - 22:23, 12 September 2024
they verified it with known isotopes of radium; the process was fine. Hahn and Strassmann found a fourth radium isotope. Their half-lives were formulated...
99 KB (12,607 words) - 04:05, 20 August 2024
Cormicy. J. Danysz, Le Radium 9, 1 (1912); 10, 4 (1913) Danysz, J. Recherches expérimentales sur les β rayons de la famille du radium Ann. Chim. Phys. 30...
3 KB (282 words) - 07:27, 26 August 2022
This list contains fictional chemical elements, materials, isotopes or subatomic particles that either a) play a major role in a notable work of fiction...
100 KB (2,149 words) - 03:26, 5 October 2024