Portions of this material are Copyright ©1977-1996 Far Future Enterprises. |
Master Index |
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Library Data Index |
Superheavy Elements: Although elements heavier
than uranium are increasingly unstable and radioactive (with half-lives
measured in fractions of a second), quantum theory predicts an "island
of stability," consisting of the elements with atomic numbers 114 to 122,
which have half-lives measured in the millions of years. These superheavy
elements, also called eka-metals or island metals. are generated in small
amounts in supernova explosions. Only a few grams have ever been discovered
in nature, which is just enough for scientists to determine that superheavies
would be immensely valuable to industry if a source could be found. -ld
IE