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Strontium-90. 90 Sr ist ein Betastrahler mit einer Zerfallsenergie von 0,546 MeV und zerfällt mit einer Halbwertzeit von 28,78 Jahren zu 90 Y, das seinerseits rasch (t 1/2 = 64,1 h) unter Aussendung von energiereicher Betastrahlung (ZE = 2,282 MeV) und von Gammastrahlung zum stabilen 90 Zr zerfällt.
Resúmenes de Salud Pública - Estroncio (Strontium) CAS#: 7440-24-6. Este Resumen de Salud Pública es el capítulo sumario de la Reseña Toxicológica para el estroncio. El mismo forma parte de una serie de Resúmenes de Reseñas Toxicológicas relacionados a sustancias peligrosas y sus efectos sobre la salud.
Strontium 90 were a short-lived British band active in 1977 whose members were Mike Howlett (bass, vocals) from the band Gong, Sting (vocals, guitar, bass), Stewart Copeland (drums), and Andy Summers (guitar). The band is most notable for introducing Summers to Sting and Copeland, who as a trio would go on to massive success as the Police .
Le strontium 90, noté 90Sr, est l' isotope du strontium dont le nombre de masse est égal à 90 : son noyau atomique compte 38 protons et 52 neutrons avec un spin 0+ pour une masse atomique de 89,907 73 g/mol. Il est caractérisé par un excès de masse de −85 950,9 ± 1,4 keV et une énergie de liaison nucléaire par nucléon de 8 696,0 keV 1 .
Strontium. S.C. Gad, in Encyclopedia of Toxicology (Third Edition), 2014 Reproductive Toxicity. In a minipig study in which dams were dosed with strontium-90, levels required to affect fetal or neonatal mortality were high enough to kill the dams as well.Injection of pregnant mice with strontium-90 in one study caused a decrease in number of fetal oocytes as well as skeletal malformations.
Стронций-90. Стро́нций-90 ( лат. strontium-90 ) — радиоактивный нуклид химического элемента стронция с атомным номером 38 и массовым числом 90. Образуется преимущественно при делении ядер в ядерных ...
30 de ene. de 2017 · Strontium-90 (90 Sr) is a bone- and teeth-seeking radionuclide 1 that is released in large quantities during nuclear accidents and aerial nuclear testing 2,3,4.Due to its high solubility in water ...
