Marie Curie is famous for her discoveries in radioactivity. What element did she discover? A. Radium. B. Platinum. C. Gold. D. Silver. 相关知识点: 试题来源: 解析 A。玛丽·居里以她在放射性方面的发现而闻名,她发现了镭。B 选项铂,不是玛丽·居里发现的,不符合;C 选项金,不是玛丽·居里发现...
结果1 题目 Marie Curie is famous for her discoveries in radioactivity. What element did she discover? A. Radium B. Plutonium C. Uranium D. Helium 相关知识点: 试题来源: 解析 A。解析:玛丽·居里发现了镭元素。钚元素不是她发现的;铀元素不是她首次发现;氦元素也不是她发现的。 反馈 收藏 ...
Radium is a highly radioactive alkaline element. Before people fully realized the dangers of radium, it was used as a common...
After four years"" hard work and refinement of tons of pitchblende, Marie and her hus-band at last saw the dim blue light of the new element -- radium. Her dream had come true. There are many other examples. Just around us, for instance, the athletes who gain the gold medals, the ...
radium. It decays to release energy at the rate of 140W/g. The decay rate is too high that it can raise the temperature of a half gram sample of polonium to over 500°C and subject you to a contact gamma-ray dose rate of 0.012 Gy/h, which is more than enough radiation to kill ...
and electrons. The protons and neutrons are found in the nucleus of the atom, while the electrons are outside the nucleus. The atomic number is the number of protons, while the mass number is the number of protons and neutrons. If an element is not charged, the number of electrons will...
This lesson describes the discovery of the element darmstadtium, named after the city of Darmstadt. In addition to the origin of its name, we also discuss its properties and uses. Related to this Question What is darmstadtium? What is thulium used for?
a他们发现了放射性元素镭 They have discovered the radioactive element radium[translate] aYou also go to bed early, 您及早也上床,[translate] a然而卫生填埋方式也有非常不利的因素:占地巨大,随着我国城市化进程,越来越多的城市面临垃圾无地可埋的局面;二次污染严重,臭气飘散影响周边居民的现象仍然不能根除,大...
Answer and Explanation:1 Marie Curie discovered the element radium during her research in the early 1900s. At that time, she and her husband, Pier, were studying the mineral... Learn more about this topic: Marie Curie | Biography, Facts & Discovery ...
9 RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook RA (redirected fromradium) Dictionary Thesaurus Medical Encyclopedia Wikipedia Related to radium:radium therapy,uranium AcronymDefinition RARental Agreement RAResident Assistant ...