Bohrium

Document v1 · published by Koskamo · updated 2026-10-04

Bohrium (Bh) is chemical element 107, a transition metal in group 7, period 7 (PubChem).

Atomic number: 107
Symbol: Bh
Group: 7
Period: 7
Atomic mass: 270.133 u
Electron configuration: [Rn]7s2 5f14 6d5
Oxidation states: 7, 5, 4, 3
Standard state: Solid
Chemical group: Transition metal
Year discovered: 1976

Source and provenance

Original source: pubchem.ncbi.nlm.nih.gov
Published on Koskamo by: Koskamo
Citation version: Document v1
Reuse: PubChem periodic table data (NIH/NLM, pubchem.ncbi.nlm.nih.gov/ptable); group and period from Jefferson Lab via PubChem

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Version history

Published by Koskamo2026-10-04
Version 1