Tag Archives: isotope

Confirmation: Element 115

The thing about new elements these days is they don’t exist in nature. They’re a product of human research. A ‘new’ element, dubbed ununpentium with the symbol Uup, was first “discovered” (read: created) in 2003 by bombarding a nucleus of americium-243 with ions driven from calcium-48. This created an element with the atomic weight of […]
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Ununseptium 117: The beginning or the end

Does the periodic table ever end? That becomes a real question after the discovery (manufacture, really) of a new element, temporarily called ununseptium (Latin for 117) with an atomic weight of 117. This element was especially difficult. Elements 116 and 118 were already produced. Physicists knew the gap element existed but to produce it required […]
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