Radiums

Part of speech: noun

Definitions

1. An isotope of radium characterized by its radioactivity and unstable atomic structure that can emit radiation
2. A group of isotopes of the element radium, which are rare and predominantly found in uranium ore
3. The plural form referring to multiple instances or variations of radium, particularly in scientific contexts or discussions about radioactive elements

Etymology: Radium was named in 1898 by Pierre and Marie Curie, who isolated it from pitchblende. Its name comes from French "radium," which the Curies formed by shortening "radioactif" (radioactive) and adding "-ium," the suffix chemists used for metallic elements. The word thus records the discovery itself: the element was named for its radioactivity, the property that had only just been recognised. "Radiums" is simply the plural of "radium," so it refers to several samples, sources or kinds of the element. Because radium is a single element, the plural is used loosely, mainly in scientific or historical talk about different preparations, isotopes such as radium-226 and radium-224, or multiple specimens.