2) radioactive elements 放射性元素 1. With the development of science and technology,people known about the radioactive elements more and more. 随着科技的发展,人们对放射性元素的认识日益加深,普通百姓越来越关注放射性元素对生活的影响。 2. U and Th are radioactive elements. U和Th是放射性...
radioactive elements which had never been seen before.Because of her amazing discoveries and work in science,Marie Curie became the first woman ever to win a Nobel Prize.A few years later,Marie went on to win a second Nobel Prize which made her the first person ever to ...
Star-less planets may be habitable after allThe radioactive decay of elements in a planet's core could keep it warm enough to maintain liquid water, even if it was no longer orbiting its stardoi:10.1016/S0262-4079(11)60375-8NoneELSEVIER...
After the death of her beloved husband, Marie Curie's commitment to science remains strong as she tries to explain previously unknown radioactive elements. But it soon becomes terrifyingly evident that her work could lead to applications in medicine that could save thousands of lives -- or applic...
Twitter Google Share on Facebook allanite Also found in:Encyclopedia,Wikipedia. (ˈæləˌnaɪt) n (Minerals) a rare black or brown mineral consisting of the hydrated silicate of calcium, aluminium, iron, cerium, lanthanum, and other rare earth minerals. It occurs in granites and ot...
After the death of her beloved husband, Marie Curie's commitment to science remains strong as she tries to explain previously unknown radioactive elements. But it soon becomes terrifyingly evident that her work could lead to applications in medicine that could save thousands of lives -- or applic...
He led the country through the American Civil War.He was the first U.S. president who was killed Nightingale(南丁格尔)She is the world's first real female nurse She Created the world's first formal school for nurses She was "The Lady with the Lamp"（提灯女神）The" International Nurses ...
Allanite becomes metamict over geological time-scales as a result of the α-decay of radioactive elements in the crystal structure. This study focuses on the recrystallization of metamict allanite from Savvushka, Russia. The structural recovery produced by annealing was investigated by X-ray ...
Atomic nucleus; α, β and γ radiations; Law of radioactive decay; Decay constant; Half-life and mean life; Binding energy and its calculation; Fission and fusion processes; Energy calculation in these processes Photoelectric effect; Bohr’s theory of hydrogen-like atoms; Characteristic and cont...
Adsorption of radioactive elements on illite and bentonite Fixation of some radioactive isotopes, from aqueous and phosphage solutions, on illite and bentonite minerals showed that the interaction between the radio... MB Hafez,AA Abdelrasoul,R Alqasmi - 《Isotopenpraxis Isotopes in Environmental &...