Bohrium (formerly Nielsbohrium)
| Atomic Number: | 107 |
| Symbol: | Bh |
| Atomic weight: | (262) |
| Discovery: | Dubna Russia 1975 |
| Electron Configuration: | [Rn]7s25f146d5 |
| Word Origin: | Formerly Ns, Nielsbohrium. Named in honor of Niels Bohr. |
| Sources: | Bohrium is a man-made element. In 1976, Soviet scientists at Dubna announced they had synthesized element 107 by bombarding Bi-204 with heavy nuclei of Cr-54. There are reports that the element was 'glimpsed' for 2/1000 s in 1975. Bohrium was produced by bombarding a rapidly rotating cylinder target, coated with a thin layer of bismuth metal, with a stream of tangentially fired Cr-54 ions. West German physicists at the Heavy Ion Research Laboratory at Darmstadt verified the existence of element 107, creating and identifying six nuclei of Bohrium. |
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