Bohrium Facts

Bohrium Facts
Bohrium (Bh) has an atomic number of 107, and therefore has that same number of protons in the nucleus of each of its atoms. It is a synthetic element that is not naturally occurring on Earth.
Interesting Bohrium Facts:
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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