1898年12月26日,居里夫人发现放射性元素——镭(radium)。这一天,居里夫人——玛丽-斯克罗多夫斯卡在提交给法国科学院的报告中,宣布他们发现一个比铀的放射性要强百万倍的新元素——镭。这一发现是世界物理学界的一个伟大的发现。镭能放射出α和γ两种射线,并生成放射性气体氡。镭放出的射线能破坏、杀死细胞和细菌。因此,常用来治疗癌症等。此外,镭盐与铍粉的混合制剂,可作中子放射源,用来探测石油资源、岩石组成等。它还是原子弹的材料之一。镭的发现,成为皮埃尔-居里和他的妻子玛 On December 26, 1898, Madame Curie discovered the radioactive element radium. On the same day Marie Curdovski, Marie Curie, announced in her report to the French Academy of Science that they found a new element - radium - a million times more powerful than uranium. This discovery is a great discovery by the world’s physics community. Radium can emit both α and γ rays, and generate radon gas radon. Radium radiation can destroy, kill cells and bacteria. Therefore, commonly used to treat cancer and so on. In addition, radium salt and beryllium powder mixture can be used as a neutron radioactive source, used to detect oil resources, rock composition. It is also one of the materials of the atomic bomb. Ra’s discovery became Pierre-Curie and his wife Mary