Unconfirmed Discoveries
| Z | Name | Discovery year |
Discoverer | Notes |
|---|---|---|---|---|
| 118 | Ununoctium | 2002 | Joint Institute for Nuclear Research in Dubna and Lawrence Livermore National Laboratory | Prepared by bombardment of californium with calcium |
| 113 | Ununtrium | 2003 | Joint Institute for Nuclear Research in Dubna and Lawrence Livermore National Laboratory | Alpha decay of ununpentium |
| 115 | Ununpentium | 2003 | Joint Institute for Nuclear Research in Dubna and Lawrence Livermore National Laboratory | Prepared by bombardment of americium with calcium |
| 117 | Ununseptium | 2010 | Joint Institute for Nuclear Research in Dubna and Lawrence Livermore National Laboratory | Prepared by bombardment of berkelium with calcium |
Read more about this topic: Timeline Of Chemical Elements Discoveries
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“Furnished as all Europe now is with Academies of Science, with nice instruments and the spirit of experiment, the progress of human knowledge will be rapid and discoveries made of which we have at present no conception. I begin to be almost sorry I was born so soon, since I cannot have the happiness of knowing what will be known a hundred years hence.”
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