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Template:Infobox erbium - Revision history
2026-04-05T00:37:07Z
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>Burzuchius at 21:33, 18 February 2025
2025-02-18T21:33:27Z
<p></p>
<p><b>New page</b></p><div>{{Infobox element<br />
|symbol =Er<br />
|Z =68<br />
|number =68<br />
|name =erbium<br />
|abundance=<br />
|abundance in earth's crust=<br />
|abundance in oceans=<br />
|abundance in solar system=<br />
|left=[[holmium]]<br />
|right=[[thulium]]<br />
|above=–<br />
|below=[[fermium|Fm]]<br />
|image name=Erbium (68 Er).jpg<br />
|image upright=0.75<br />
|appearance=silvery white<br />
|electrons per shell=2, 8, 18, 30, 8, 2<br />
|phase=<br />
|density=9.065&nbsp;g/cm<sup>3</sup>&thinsp;<ref name="Arblaster 2018" /><br />
|density conditions=(at&nbsp;20°&nbsp;C)<br />
|density gpcm3mp=8.86<br />
|melting point K=1802<br />
|melting point C=1529<br />
|melting point F=2784<br />
|boiling point K=3141<br />
|boiling point C=2868<br />
|boiling point F=5194<br />
|heat fusion=19.90<br />
|heat vaporization=280<br />
|heat capacity=28.12<br />
|vapor pressure 1=1504<br />
|vapor pressure 10=1663<br />
|vapor pressure 100=(1885)<br />
|vapor pressure 1 k=(2163)<br />
|vapor pressure 10 k=(2552)<br />
|vapor pressure 100 k=(3132)<br />
|vapor pressure comment=<br />
|crystal structure=hexagonal close packed<br />
|crystal structure Pearson symbol=hP2<br />
|lattice constants=''a''&nbsp;=&nbsp;355.93&nbsp;pm<br />''c''&nbsp;=&nbsp;558.49&nbsp;pm (at&nbsp;20&nbsp;°C)<ref name="Arblaster 2018">{{cite book |last=Arblaster |first= John W. |title=Selected Values of the Crystallographic Properties of Elements |publisher=ASM International |publication-place=Materials Park, Ohio |date=2018 |isbn=978-1-62708-155-9}}</ref><br />
|electronegativity=1.24<br />
|number of ionization energies=3<br />
|ionization energy 1=589.3<br />
|ionization energy 2=1150<br />
|ionization energy 3=2194<br />
|atomic radius=176<br />
|covalent radius=189±6<br />
|magnetic ordering= [[paramagnetic]] at 300 K<br />
|electrical resistivity unit prefix=µ<br />
|electrical resistivity=poly: 0.860<br />
|electrical resistivity comment=({{abbr|r.t.|room temperature}})<br />
|thermal conductivity=14.5<br />
|thermal expansion=poly: 12.2<br />
|thermal expansion comment=({{abbr|r.t.|room temperature}})<br />
|speed of sound rod at 20=2830<br />
|magnetic susceptibility= {{val|+44,300.00|e=−6}}<br />
|magnetic susceptibility ref= <ref>{{Cite book|title=CRC, Handbook of Chemistry and Physics|last=Weast|first=Robert|publisher=Chemical Rubber Company Publishing|year=1984|isbn=0-8493-0464-4|location=Boca Raton, Florida|pages=E110}}</ref><br />
|Young's modulus=69.9<br />
|Shear modulus=28.3<br />
|Bulk modulus=44.4<br />
|Poisson ratio=0.237<br />
|Vickers hardness=430–700<br />
|Brinell hardness=600–1070<br />
|CAS number=7440-52-0<br />
|naming=after [[Ytterby]] (Sweden), where it was mined<br />
|discovered by=[[Carl Gustaf Mosander]]<br />
|discovery date=1843<br />
|first isolation by=Wilhelm Klemm and Heinrich Bommer<br />
|first isolation date=1934<br />
|QID=Q1849<br />
}}<!--<br />
<br />
--><noinclude><br />
{{Infobox element/element navigation|symbol=Er}}<br />
{{Template reference list}}<br />
{{documentation|1=Template:Infobox element/doc}}<br />
</noinclude></div>
>Burzuchius