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A rapidly rotating cylinder, coated with a thin layer of bismuth, was used and bombarded with a stream of chromium fired in a way that gave scientist a new element in 0.002 second's.

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Credit: Galyna Andrushko | Shutterstock

Word Origin: Bohrium was named for Danish physicist Niels Bohr. For a time, it was known as nielsbohrium with the symbol Ns.

Discovery: Bohrium was first discovered by a team of scientists in Dubna, Russia, in 1976. The discovery was confirmed by Peter Armbruster, Gottfried Münzenber and their team working in Darmstadt, Germany, in 1981.

Properties of bohrium

Bohrium is a synthetic element about which little is known. It is presumed to be a solid metal, but since only a few atoms of it have been created, it is difficult to study. The German team identified six nuclei of the element. [See Periodic Table of the Elements]

There are 10 isotopes of bohrium with known half-lives. The most stable is ²⁷⁰ Bh, which has a half-life of about one minute.

The atomic weight for manmade transuranium elements is based on the longest-lived isotope in the periodic table. These atomic weights should be considered provisional since a new isotope with a longer half-life could be produced in the future.

Sources of bohrium

Bohrium is produced artificially and only small amounts have been made.

The Dubna team created it by bombarding bismuth-204 ( ²⁰⁴Bi) with heavy nuclei of chromium-54 ( ⁵⁴Cr). A rapidly rotating cylinder, coated with a thin layer of bismuth, was used as a target and bombarded with a stream of chromium fired tangentially. This technique allowed the scientists to "glimpse" the new element for 0.002 seconds.

Uses of bohrium

Only a few atoms of bohrium have ever been made. Currently, it is only used in scientific study.

(Sources: Los Alamos National Laboratory, Jefferson Lab)

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Word Origin: Bohrium was named for Danish physicist Niels Bohr. For a time, it was known as nielsbohrium with the symbol Ns. Discovery: Bohrium was first discovered by a team of scientists in Dubna, Russia, in 1976. The discovery was confirmed by Peter Armbruster, Gottfried Münzenber and their team working in Darmstadt, Germany, in 1981.

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it has a high radiation level metal

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Bohrium - Element information, properties and uses | Periodic Table

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Element Bohrium (Bh), Group 7, Atomic Number 107, d-block, Mass [270]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

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Bohrium was first discovered by a team of scientists in Dubna, Russia, in 1976.
There are 10 isotopes of bohrium with known half-lives.Oct 23, 2013

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WebElements Periodic Table " Bohrium " historical information

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This WebElements periodic table page contains historical information for the element bohrium