Bohrium Facts
Bohrium Facts
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| Interesting Bohrium Facts: |
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| Bohrium is one of the later discoveries, as it was not fully discovered until 1987. |
| A German research team at that time isolated it under the direction of Peter Armbruster and Gottfried Munzenberg in Darmstadt. |
| The element was named after Danish nuclear physicist Niels Bohr, and was originally given the longer name nielsbohrium. |
| That name was later shortened by the IUPAC. |
| It was synthesized when the team bombarded a bismuth isotope, Bi-209 with a chromium isotope, Cr-54. |
| The resulting reaction produced five atoms of bohrium. |
| There are no stable, naturally occurring isotopes of bohrium. |
| A number of radioactive isotopes have been produced under laboratory condtions. |
| These radioisotopes have occurred through fusion of atoms, or from the observed decay of other heavier elements. |
| Eleven radioactive isotopes have been discovered, the most stable of which has a half-life of possibly between 54 seconds and ninety minutes. |
| One of these isotopes, Bh-262, has a metastable state. |
| A few of these radioactive isotopes for bohrium were produced through cold fusion. |
| This element is the fourth member of the transition metals under series 6d. |
| It is also the heaviest member of the VII group on the periodic table. |
| Bohrium falls beneath manganese, technetium, and rhenium by weight. |
| Bohrium's group is known for its +7 oxidation state, which becomes even more stable as it descends. |
| While its sample sizes have been too small to definitively observe, bohrium is expected to behave like its group members and form a similar +7 state. |
| It is possible that bohrium exhibits the lower states that technetium and rhenium display. |
| Bohrium experimentation, specifically for isolation, is relatively new, with experiments as recent as 1995 proving unsuccessful. |
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