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Prices of elements and their compounds
This table lists the elements by their name and gives some historical prices for them and their commonly traded compounds. The first of the two price columns shows the price in US dollars per kg of the compound specified. The second shows the USD price per kg of element in the compound. Dates on prices facilitate forex conversion.
Elements of only short half-lives are unlikely to be traded on a secondary market outside of nuclear lab production, and were therefore excluded from the main table. The current cutoff excludes elements with atomic number greater than 105. They have no isotope with a half-life greater than 1.5 hours and are listed separately later.
These elements above 105 were excluded from the above table:
==See also==
*Element collecting
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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