Sentence examples for curium from inspiring English sources
noun
A transuranic chemical element (symbol Cm) with an atomic number of 96.
Russian physicists, on the other hand, were using beams of light atoms, such as calcium, and smashing them into very heavy atoms such as plutonium or curium.
21: (a), 22: (b), 23: Marie Curie, who discovered radium and coined the term "radioactivity" (curium); and Lise Meitner, who helped to discover nuclear fission (meitnerium).
The novel element in all this is the heat source: a cigarette-sized piece of a radioactive element called curium.Sticking a source of radioactivity into a patient may not sound such a good idea, but curium is, as these things go, relatively safe.
The French wanted something for the Joliot-Curies (the daughter and son-in-law of Marie and Pierre Curie, who already have their own in curium, number 96).
Metallic californium has been prepared and is structurally similar to metallic americium, curium, berkelium, and most lanthanoid metals.
The other new elements discovered by Seaborg were americium (95), curium (96), berkelium (97), californium (98), einsteinium (99), fermium (100), mendelevium (101), nobelium (102), and seaborgium (106).
For chemical research, curium-242 (163-day half-life) has been supplanted by curium-244 (18.1-year half-life) and the still longer-lived isotope curium-248, which are built up from plutonium-239 by neutron irradiation.
However, a year later, the Berkeley group working at Lawrence Radiation Laboratory (now known as the Lawrence Berkeley Laboratory) reported that they were unable to reproduce this work, but did create nobelium-254 by bombarding curium-246 with carbon-12 in the new heavy-ion linear accelerator (HILAC; see featured image above the jump).
They made an isotope of this element by bombarding curium-244 with carbon-13 ions in a cyclotron.
In 1969, the Berkeley team successfully synthesised three different isotopes of element 104 (bombarding curium-248 with oxygen-16 to get isotope 260; californium-249 with carbon-12 to get isotope 257, and californium-249 with carbon-13 to get isotope 258).
Curium-244, which has a half-life of 18.1 years, produces 2.83 watts of heat per gram.
