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تربیم

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Also known as Tb, element 65, 65Tb

Terbium is a chemical element; it has symbol Tb and atomic number 65. It is a silvery-white, rare earth metal that is malleable and ductile. The ninth member of the lanthanide series, terbium is a fairly electropositive metal that reacts with water, evolving hydrogen gas. Terbium is never found in nature as a free element, but it is contained in many minerals, including cerite, gadolinite, monazite, xenotime and euxenite.

OverviewAI-generated

Terbium is a chemical element with the symbol Tb and atomic number 65. It was discovered in 1843. The element has a mass of 158.925354 and an electronegativity of 1.2. Its ionic radius is 1.04. The chemical formula is Tb, and its canonical SMILES representation is [Tb]. The Unicode character for terbium is 鋱.

In chemical databases, terbium is identified by the PubChem CID 23958. Its IUPAC name is terbium, and it has a molecular weight of 158.92535. The InChIKey for the substance is GZCRRIHWUXGPOV-UHFFFAOYSA-N. It has a topological polar surface area of 0, with zero hydrogen bond donors and acceptors, and a charge of 0.

Scientific literature regarding terbium includes 3,610 entries in PubMed. The subject is referenced by 798 other encyclopedia articles.

Synthesized by Vinony from 23 facts across 4 sources: Wikidata, PubChem, PubMed, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula: Tb
Molecular weight: 158.92535 g/mol
IUPAC name: terbium
SMILES: [Tb]
InChIKey: GZCRRIHWUXGPOV-UHFFFAOYSA-N
Polar surface area: 0 Å²
H-bond donors: 0
H-bond acceptors: 0
Formal charge: 0

via PubChem

Research

3,610 papers

Terbium radionuclides for theranostic applications in nuclear medicine: from atom to bedside.ReviewTheranostics · 2024Van Laere C, Koole M, Deroose CM et al.DOI: 10.7150/thno.92775
Terbium chloride influences Clostridium difficile spore germination.ReviewAnaerobe · 2019Shrestha R, Sorg JADOI: 10.1016/j.anaerobe.2019.03.016
Terbium-161 in nuclear medicine: Preclinical and clinical progress in comparison with lutetium-177.ReviewNuclear medicine and biology · 2025Trejtnar F, Bárta P, Kozempel J et al.DOI: 10.1016/j.nucmedbio.2025.108998
Potential Biomedical Applications of Terbium-Based Nanoparticles (TbNPs): A Review on Recent Advancement.ReviewACS biomaterials science & engineering · 2024Mohanto S, Biswas A, Gholap AD et al.DOI: 10.1021/acsbiomaterials.3c01969
Terbium Vanadate Nanowires-Based Electrochemical Sensors for Mercury Ions.Applied biochemistry and biotechnology · 2024Wang X, Cong Q, Feng C et al.DOI: 10.1007/s12010-024-04882-x
Opportunities and potential challenges of using terbium-161 for targeted radionuclide therapy in clinics.European journal of nuclear medicine and molecular imaging · 2023Müller C, van der Meulen NP, Schibli RDOI: 10.1007/s00259-023-06316-y
Terbium-149 production: a focus on yield and quality improvement towards preclinical application.Scientific reports · 2024Favaretto C, Grundler PV, Talip Z et al.DOI: 10.1038/s41598-024-53610-2
Thermoluminescence Characteristics of Copper and Terbium Co-Doped Lithium Tetraborate Glass.Radiation research · 2023El-Faramawy N, El-Kinawy M, Farouk S et al.DOI: 10.1667/RADE-23-00033.1

Wikidata facts

Instance of: chemical element
Part of: period 6
Named after: Ytterby mine
Mass: 158.925354
Image: Terbium element.jpg

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element symbol: Tb
Commons category: Terbium
topic's main category: Category:Terbium
atomic number: 65
discoverer or inventor: Carl Gustaf Mosander
time of discovery or invention: 1843-01-01
location of discovery: Stockholm
Commons gallery: Terbium
described by source: Encyclopædia Britannica 11th edition
canonical SMILES: [Tb]
chemical formula: Tb
Unicode character: 鋱
electronegativity: 1.2
ionic radius: 0.88
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4

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