yttrium
Chemical element with symbol Y and atomic number 39
Also known as element 39 · Y · 39Y
- Symbol
- Y
- Atomic number
- 39
1
- 39
- Mass
- 88.9058 Da
1
Sources- 1.Stated in Pure and Applied Chemistry“Standard atomic weights of the elements 2021 (IUPAC Technical Report)”Retrieved 2022-05-06
- 88.9058 Da
- Melting point
- 2,732°F
- Boiling point
- 5,301°F
- Density
- 4.47 g/cm³
- Discovered by
- Johan Gadolin
- , Friedrich Wöhler(1828)
- Discovered
- 1787
Overview
All data
262 statements · 15% with external sources · numbers in brackets are citations
- Immediately dangerous to life or health
- 500 milligram per cubic metre
- Vapor pressure
- 0 millimetre of mercury temperature: 68°F
- Time-weighted average exposure limit
- 1 milligram per cubic metre applies to jurisdiction: United States · runtime: 10 h
- Canonical SMILES
- [Y]
1
- [Y]
- Formula
- Y
1
- Y
- Ionic radius
- 0.9 ångström charge number: 3 · coordination number: 6
- 1.02 ångström charge number: 3 · coordination number: 8
- 1.08 ångström charge number: 3 · coordination number: 9
- Electron configuration
- [Kr] 4d¹ 5s²
- Oxidation state
- 3
- 0
- 1
- 2
- Made from material
- fergusonite-(Y)
- gadolinite-(Y)
- polycrase-(Y)
- tanteuxenite-(Y)
- aeschynite-(Y)
- adamsite-(Y)
- agakhanovite-(Y)
- alwilkinsite-(Y)
Show 52 moreShow less
- allanite-(Y)
- badakhshanite-(Y)
- britholite-(Y)
- barrydawsonite-(Y)
- bussyite-(Y)
- bastnäsite-(Y)
- batievaite-(Y)
- bijvoetite-(Y)
- chernovite-(Y)
- chiappinoite-(Y)
- chinleite-(Y)
- cayalsite-(Y)
- caysichite-(Y)
- calcybeborosilite-(Y)
- cappelenite-(Y)
- chukhrovite-(Y)
- churchite-(Y)
- dessauite-(Y)
- donnayite-(Y)
- decrespignyite-(Y)
- euxenite-(Y)
- fluorbritholite-(Y)
- clinofergusonite-(Y)
- fogoite-(Y)
- formanite-(Y)
- gagarinite-(Y)
- gramaccioliite-(Y)
- gerenite-(Y)
- hizenite-(Y)
- hainite-(Y)
- hundholmenite-(Y)
- hellandite-(Y)
- horváthite-(Y)
- hingganite-(Y)
- iimoriite-(Y)
- iwashiroite-(Y)
- kainosite-(Y)
- kimuraite-(Y)
- keiviite-(Y)
- kamotoite-(Y)
- kamphaugite-(Y)
- kuliokite-(Y)
- kapitsaite-(Y)
- kobeite-(Y)
- levinsonite-(Y)
- lecoqite-(Y)
- lokkaite-(Y)
- lusernaite-(Y)
- loranskite-(Y)
- mckelveyite-(Y)
- monteregianite-(Y)
- mieite-(Y)
- Bulk modulus
- 41.7B Pa
- Shear modulus
- 27.1B Pa
- Poisson's ratio
- 0.233
- Thermal conductivity
- 17 watt per metre kelvin
- Electrical conductivity
- 1,660,000 siemens per metre
- Speed of sound
- 3,300 m/s
- Ionization energy
- 6.2173 eV
1
Sources- 1.“NIST Atomic Spectra Database, Ionization Energies”physics.nist.gov/asdRetrieved 2026-09-18
- 12.2236 eV
1
Sources- 1.“NIST Atomic Spectra Database, Ionization Energies”physics.nist.gov/asdRetrieved 2026-09-18
- 20.5244 eV
1
Sources- 1.“NIST Atomic Spectra Database, Ionization Energies”physics.nist.gov/asdRetrieved 2026-09-18
- 6.2173 eV
- IPA transcription
- ˈɪtriəm language: English
- Atomic radius
- 180 picometre
- Covalent radius
- 190 picometre
On other databases
69 identifiers linking yttrium across the web's reference databases
- Arabic Ontology lexical concept ID151078562
- Art & Architecture Thesaurus ID300380580
- Australian Educational Vocabulary IDscot/3600
- BabelNet ID00006869n
- Bibliothèque nationale de France ID12168271v
- Brockhaus Enzyklopädie online IDyttrium
- CAB ID281355
- CAMEO Chemicals ID25083
- CAS Registry Number7440-65-5
- ChEBI ID33331
- ChemSpider ID22429
- COD ID9012385
- Common Procurement Vocabulary code14734000
- CPV Supplementary codeAA17
- DeCS ID15415
- Dewey Decimal Classification546.403
- DSSTOX compound identifierDTXCID4029775
- DSSTox substance IDDTXSID0049816
- EC number231-174-8
- ECHA Substance Infocard ID100.028.340
- Elhuyar ZTH ID025999
- Encyclopædia Britannica Online IDscience/yttrium
- Encyclopædia Universalis IDyttrium
- Encyclopedia of China (Third Edition) ID (2026)1DL5o
- Encyclopedia of China (Third Edition) old ID (2021)486069
- Freebase ID/m/025sqv7
- Gmelin number16319
- GND ID4067222-0
- Golden ID (archived)Yttrium-ZZ45MY
- Great Norwegian Encyclopedia IDyttrium
- Great Russian Encyclopedia portal IDittrii-2895bc
- Hrvatska enciklopedija IDitrij
- HSDB ID7405
- Human Metabolome Database IDHMDB0013667
- InChIInChI=1S/Y
- InChIKeyVWQVUPCCIRVNHF-UHFFFAOYSA-N
- Interlingual Index IDi114033
- J9U entity ID987007531972405171
- JSTOR topic ID (archived)yttrium
- KBpedia IDYttrium
- Latvian National Encyclopedia Online ID173630
- Lex IDyttrium
- Library of Congress Authorities IDsh85149410
- MeSH descriptor IDD015019
- MeSH tree codeD01.268.558.975
- Microsoft Academic ID (discontinued)531131001
- Namuwiki ID이트륨
- NDL Authority ID00564324
- NicoNicoPedia word article IDイットリウム
- OmegaWiki Defined Meaning370956
- OpenAlex IDC531131001
- OSHA Occupational Chemical Database ID546
- PSH ID5757
- PubChem CID23993
- Quora topic IDYttrium
- RTECS numberZG2980000
- RxNorm CUI1534770
- ScienceDirect topic IDmaterials-science/yttrium
- SureChEMBL ID26688294
- Treccani IDittrio
- UN Thesaurus ID1007116
- UniChem compound ID1096602
- UNII58784XQC3Y
- USGS Thesaurus ID1617
- Vikidia article IDfr:Yttrium
- WikiKids IDYttrium
- WordNet 3.1 Synset ID14685919-n
- Yale LUX IDconcept/201d985f-177e-441e-a809-c4bc39684820
- ZVG number7390