radioactivity purity
21Thorium — (pronEng|ˈθɔːriəm) is a chemical element with the symbol Th and atomic number 90. As a naturally occurring, slightly radioactive metal, it has been considered as an alternative nuclear fuel to uranium.CharacteristicsWhen pure, thorium is a… …
22Plutonium — (pronEng|pluːˈtoʊniəm, symbol Pu, atomic number 94) is a rare radioactive, metallic chemical element. The most significant isotope of plutonium is 239Pu, with a half life of 24,100 years; this isotope is fissile and is used in most modern nuclear …
23Agua Hedionda Spa — The Spa of Agua Hedionda (Spanish: Balneario de Agua Hedionda ) is a mineral spring day spa located in the city of Cuautla, in the state of Morelos, Mexico, about convert|60|mi|km south of Mexico City.Agua Hedionda means in Spanish Foul Smelling… …
24nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force …
25Neutron activation analysis — Science with Neutrons Foundations Neutron temperature Flux · Radiation  …
26Iodine-125 — (125I) is a radioisotope of iodine which has uses in biological assays and in radiation therapy to treat prostate cancer and brain tumors. Its half life is around 60 days and it emits gamma rays with maximum energies of 35 keV, some of which are… …
27Noble gas — Group 18 Period 1 2 He 2 …
28Rubidium — krypton ← rubidium → strontium K ↑ Rb ↓ …
29History of nuclear weapons — The history of nuclear weapons chronicles the development of nuclear weapons. Nuclear weapons are devices that possess enormous destructive potential derived from nuclear fission or nuclear fusion reactions. Starting with the scientific… …
30Уленбек, Джордж Юджин — В Википедии есть статьи о других людях с такой фамилией, см. Уленбек. Джордж Юджин Уленбек George Eugene Uhlenbeck Дата рождения: 6 декабря 1900 …
