| 释义 |
Definition of curium in English: curiumnoun ˈkjʊərɪəmˈkjʊriəm mass nounThe chemical element of atomic number 96, a radioactive metal of the actinide series. Curium does not occur naturally and was first made by bombarding plutonium with helium ions. Example sentencesExamples - All isotopes of curium are radioactive with curium - 247 having the longest half life, about 16 million years.
- It is prepared artificially by bombarding curium with alpha particles in a particle accelerator.
- The lifetimes of the first ‘transuranium’ elements - such as plutonium, curium and californium - were very close to the values predicted by the liquid-drop model.
- Kept secret until after the war, they were respectively called americium and curium.
- Release of plutonium, americium and curium could occur from laboratory or industrial accidents.
Origin 1940s: modern Latin, from the name of Marie and Pierre Curie. Definition of curium in US English: curiumnounˈkjʊriəmˈkyo͝orēəm The chemical element of atomic number 96, a radioactive metal of the actinide series. Curium does not occur naturally and was first made by bombarding plutonium with helium ions. Example sentencesExamples - All isotopes of curium are radioactive with curium - 247 having the longest half life, about 16 million years.
- The lifetimes of the first ‘transuranium’ elements - such as plutonium, curium and californium - were very close to the values predicted by the liquid-drop model.
- Release of plutonium, americium and curium could occur from laboratory or industrial accidents.
- It is prepared artificially by bombarding curium with alpha particles in a particle accelerator.
- Kept secret until after the war, they were respectively called americium and curium.
Origin 1940s: modern Latin, from the name of Marie and Pierre Curie. |