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2021-04-16T04:03:38Z

1 revision imported: setup

setup>Monkbot: Task 18a (cosmetic) (manual): eval 1 template: del empty params (2×);

2020-12-16T15:55:13Z

Task 18a (cosmetic) (manual): eval 1 template: del empty params (2×);

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{{Infobox element
|number=65
|symbol=Tb
|name=terbium
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[gadolinium]]
|right=[[dysprosium]]
|above=–
|below=[[berkelium|Bk]]
|period=6
|block=f
|image name=Terbium-2.jpg
|appearance=silvery white
|electrons per shell=2, 8, 18, 27, 8, 2
|phase=
|density gpcm3nrt=8.23
|density gpcm3mp=7.65
|melting point K=1629
|melting point C=1356
|melting point F=2473
|boiling point K=3396
|boiling point C=3123
|boiling point F=5653
|heat fusion=10.15
|heat vaporization=391
|heat capacity=28.91
|vapor pressure 1=1789
|vapor pressure 10=1979
|vapor pressure 100=(2201)
|vapor pressure 1 k=(2505)
|vapor pressure 10 k=(2913)
|vapor pressure 100 k=(3491)
|vapor pressure comment=
|crystal structure=hexagonal close packed
|electronegativity=1.2
|electronegativity comment=(?)
|number of ionization energies=3
|ionization energy 1=565.8
|ionization energy 2=1110
|ionization energy 3=2114
|atomic radius=177
|covalent radius=194±5
|magnetic ordering=[[paramagnetic]] at 300 K
|electrical resistivity unit prefix=µ
|electrical resistivity=α, poly: 1.150
|electrical resistivity comment=(at [[room temperature|r.t.]])
|thermal conductivity=11.1
|thermal expansion=at {{abbr|r.t.|room temperature}} α, poly: 10.3
|speed of sound rod at 20=2620
|magnetic susceptibility= +146,000·10<sup>−6</sup>
|magnetic susceptibility ref=  (273 K)<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=α form: 55.7
|Shear modulus=α form: 22.1
|Bulk modulus=α form: 38.7
|Poisson ratio=α form: 0.261
|Vickers hardness=450–865
|Brinell hardness=675–1200
|CAS number=7440-27-9
|isotopes=
{{infobox element/isotopes decay | mn=157 | sym=Tb
|na=[[synthetic radioisotope|syn]] | hl=71 y
|dm=[[electron capture|ε]] | de=0.060 | link1=gadolinium-157 | pn=157 | ps=Gd}}
{{infobox element/isotopes decay2 | mn=158 | sym=Tb
|na=syn | hl=180 y
|dm1=ε | de1=1.220 | link1=gadolinium-158 | pn1=158 | ps1=Gd
|dm2=[[beta decay|β<sup>−</sup>]] | de2=0.937 | link2=dysprosium-158 | pn2=158 | ps2=Dy}}
{{infobox element/isotopes stable | mn=159 | sym=Tb | na=100% | n=94 |firstlinks=yes}}
|isotopes comment=
|naming=after [[Ytterby]] (Sweden), where it was mined
|discovery and first isolation by=[[Carl Gustaf Mosander]]
|discovery date=1843
|QID=Q1838
}}<noinclude>
{{Infobox element/element navigation|symbol=Tb}}
{{Template reference list}}
{{documentation|1=Template:Infobox element/doc}}
</noinclude>

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setup>Monkbot: Task 18a (cosmetic) (manual): eval 1 template: del empty params (2×);