bohrium

Chemical element with symbol Bh and atomic number 107

Chemical elementchemical element synthetic elementQ1249

Also known as element 107

Symbol: Bh
1
Sources
1.Stated in Atomic weights of the elements 2009 (IUPAC Technical Report)
View statement on Wikidata ↗
, Uns
Atomic number: 107
Mass: 270.1334 Da
1
Sources
1.physics.nist.gov/cgi-bin/Compositions/stand_alone.pl?ele=&ascii=ascii2&isotype=allRetrieved 2026-09-19
View statement on Wikidata ↗
Discovered by: Yuri Oganessian
Discovered: 1976

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Bohrium is a synthetic chemical element; it has symbol Bh and atomic number 107. It is named after Danish physicist Niels Bohr. As a synthetic element, it can be created in particle accelerators but is not found in nature. All known isotopes of bohrium are highly radioactive; the most stable known isotope is 270Bh with a half-life of approximately 2.4 minutes, though the unconfirmed 278Bh may have a longer half-life of about 11.5 minutes.

Overview

All data

54 statements · 13% with external sources · numbers in brackets are citations

Named after: Niels Bohr(since 1994)
Unicode character: 𨨏
1
Sources
1.cns11643.gov.tw/wordView.jsp?ID=733734Retrieved 2019-07-13
View statement on Wikidata ↗
Part of: period 7 follows: September · followed by: hassium
group 7 follows: rhenium
transition metal
Electron configuration: [Rn] 5f¹⁴ 6d⁵ 7s²
Crystal system: hexagonal crystal system
Subclass of: d-block
IPA transcription: ˈbɔːriəm language: English
Oxidation state: 3
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On other databases

29 identifiers linking bohrium across the web's reference databases

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13%

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Source last edited September 19, 2026. AIDB refreshes this page daily.

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AIDB. (2026). bohrium (Q1249). Retrieved from https://aidb.si/e/bohrium-Q1249