thorium


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thorium

 [thor´e-um]
a chemical element, atomic number 90, atomic weight 232.038, symbol Th. (See Appendix 6.)

tho·ri·um (Th),

(thō'rē-ŭm),
A radioactive metallic element; atomic no. 90, atomic wt. 232.0381. 232Th, the only naturally occurring nuclide, with a half-life of 14 × 109 years, is used in colloidal form in electron microscopy as a stain for acid mucopolysaccharides.
[Thor, Norse god of thunder]

thorium

/tho·ri·um/ (thor´e-um) chemical element, at. no. 90, symbol Th.

thorium (Th)

[thôr′ē·əm]
Etymology: ONorse, Thor, god of thunder
a heavy grayish radioactive metallic element. Its atomic number is 90; its atomic mass (weight) is 232.04. Thorium is used in nuclear medicine and in radiation therapy.

tho·ri·um

(Th) (thōr'ē-ŭm)
A radioactive metallic element; atomic no. 90, atomic wt. 232.0381. 232Th, the only naturally occurring nuclide, with a half-life of 14 × 109 years, is used in colloidal form in electron microscopy as a stain for acid mucopolysaccharides.
[Thor, Norse god of thunder]

thorium

a chemical element, atomic number 90, atomic weight 232.038, symbol Th. See Table 6. Formerly used as a radiographic contrast medium.
References in periodicals archive ?
Thorium fuel can be effectively used for continuous recycling of transuranic actinides in a variety of reactor systems: reduced moderation LWRs, MSRs and fast reactors.
Nobel laureate Carlo Rubbia at the European Organization for Nuclear Research points out the use of thorium as a cheap, clean and safe alternative to uranium in reactors may be the magic bullet we have all been hoping for.
The results showed that using adsorbent material, the percent removal of thorium was decreased when the initial concentration ([C.
We hope to set up this Institute for a high scale energy research to design a backbone skeleton plan that may eventually turn into an energy production from Thorium.
His advisor, Wendy Panero, associate professor in the School of Earth Sciences at Ohio State, explained that radioactive elements such as thorium, uranium, and potassium are present within Earth's mantle.
Thorium is ubiquitous, its release in environment occurs both from natural and anthropogenic sources that elevate its level over the background.
Thorium is far more abundant, by about four times, than the traditional nuclear fuel, Uranium, and occurs in a far purer form, too.
Also, proponents say that thorium doesn't require the high temperatures and mitigation equipment of uranium-based reactors.
circumvents these hazards and cost issues to produce a new thorium chloride reagent, Th[Cl.
Thorium reactors are the big what-if technology of the 20th century.
The company will use the grant to support the development of targeted Thorium conjugates (TTCs), which are based on thorium-227.
By then we will be using thorium, which is more abundant than uranium and so should be less expensive.