View source for Template:Infobox erbium

{{Infobox element
| check      =ok
| checknote1 =tables the same; did not check with NUBASE2020
|number=68
|symbol=Er
|name=erbium
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[holmium]]
|right=[[thulium]]
|above=–
|below=[[fermium|Fm]]
|image name=Erbium-crop.jpg
|image upright=0.75
|appearance=silvery white
|electrons per shell=2, 8, 18, 30, 8, 2
|phase=
|density gpcm3nrt=9.066
|density gpcm3mp=8.86
|melting point K=1802
|melting point C=1529
|melting point F=2784
|boiling point K=3141
|boiling point C=2868
|boiling point F=5194
|heat fusion=19.90
|heat vaporization=280
|heat capacity=28.12
|vapor pressure 1=1504
|vapor pressure 10=1663
|vapor pressure 100=(1885)
|vapor pressure 1 k=(2163)
|vapor pressure 10 k=(2552)
|vapor pressure 100 k=(3132)
|vapor pressure comment=
|crystal structure=hexagonal close packed
|electronegativity=1.24
|number of ionization energies=3
|ionization energy 1=589.3
|ionization energy 2=1150
|ionization energy 3=2194
|atomic radius=176
|covalent radius=189±6
|magnetic ordering= [[paramagnetic]] at 300 K
|electrical resistivity unit prefix=µ
|electrical resistivity=poly: 0.860
|electrical resistivity comment=({{abbr|r.t.|room temperature}})
|thermal conductivity=14.5
|thermal expansion=poly: 12.2
|thermal expansion comment=({{abbr|r.t.|room temperature}})
|speed of sound rod at 20=2830
|magnetic susceptibility= {{val|+44,300.00|e=−6}}
|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>
|Young's modulus=69.9
|Shear modulus=28.3
|Bulk modulus=44.4
|Poisson ratio=0.237
|Vickers hardness=430–700
|Brinell hardness=600–1070
|CAS number=7440-52-0
|isotopes=
{{infobox element/isotopes decay | mn=160 | sym=Er
|na=[[synthetic radioisotope|syn]] | hl=28.58&nbsp;h
|dm=[[electron capture|ε]] | de=0.330 | link1=holmium-160 | pn=160 | ps=Ho}}
{{infobox element/isotopes stable | mn=162 | sym=Er | na=0.139% | n=94 |firstlinks=yes}}
{{infobox element/isotopes stable | mn=164 | sym=Er | na=1.601% | n=96 |firstlinks=no}}
{{infobox element/isotopes decay | mn=165 | sym=Er
|na=syn | hl=10.36&nbsp;h
|dm=ε | de=0.376 | link1=holmium-165 | pn=165 | ps=Ho}}
{{infobox element/isotopes stable | mn=166 | sym=Er | na=33.503% | n=98 |firstlinks=no}}
{{infobox element/isotopes stable | mn=167 | sym=Er | na=22.869% | n=99 |firstlinks=no}}
{{infobox element/isotopes stable | mn=168 | sym=Er | na=26.978% | n=100 |firstlinks=no}}
{{infobox element/isotopes decay | mn=169 | sym=Er
|na=syn | hl=9.4&nbsp;d
|dm=[[beta emission|β<sup>−</sup>]] | de=0.351 | link1=thulium-169 | pn=169 | ps=Tm}}
{{infobox element/isotopes stable | mn=170 | sym=Er | na=14.910% | n=102 |firstlinks=no}}
{{infobox element/isotopes decay | mn=171 | sym=Er
|na=syn | hl=7.516&nbsp;h
|dm=β<sup>−</sup> | de=1.490 | link1=thulium-171 | pn=171 | ps=Tm}}
{{infobox element/isotopes decay | mn=172 | sym=Er
|na=syn | hl=49.3&nbsp;h
|dm=β<sup>−</sup> | de=0.891 | link1=thulium-172 | pn=172 | ps=Tm}}
|naming=after [[Ytterby]] (Sweden), where it was mined
|discovered by=[[Carl Gustaf Mosander]]
|discovery date=1843
|QID=Q1849
}}<!--

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{{Infobox element/element navigation|symbol=Er}}
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