Cingak wit saking Mal:Kotak inpo sélénium

{{Infobox element
|number=34
|symbol=Sé
|name=sélénium
|abundance=
|abundance in earth's crust=
|abundance in oceans=
|abundance in solar system=
|left=[[arsenik]]
|right=[[brom]]
|above=[[urirang|S]]
|below=[[téllurium|Té]]
|image name=SeBlackRed.jpg
|appearance=alotrop klau sané kacingak sekadi logam, abang, miwah ireng (nénten kagambarang)
|electrons per shell=2, 8, 18, 6
|phase=
|density gpcm3nrt=gray: 4.81
|density gpcm3nrt 2=alpha: 4.39
|density gpcm3nrt 3=vitreous: 4.28
|density gpcm3mp=3.99
|melting point K=494
|melting point C=221
|melting point F=430
|boiling point K=958
|boiling point C=685
|boiling point F=1265
|critical point K=1766
|critical point MPa=27.2
|heat fusion=gray: 6.69
|heat vaporization=95.48
|heat capacity=25.363
|vapor pressure 1=500
|vapor pressure 10=552
|vapor pressure 100=617
|vapor pressure 1 k=704
|vapor pressure 10 k=813
|vapor pressure 100 k=958
|vapor pressure comment=
|crystal structure=trigonal
|electronegativity=2.55
|number of ionization energies=3
|ionization energy 1=941.0
|ionization energy 2=2045
|ionization energy 3=2973.7
|atomic radius=120
|covalent radius=120±4
|Van der Waals radius=190
|magnetic ordering=[[diamagnétik]]
|magnetic ordering ref=<ref>[http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf Magnetic susceptibility of the elements and inorganic compounds], ring {{RubberBible86th}}</ref>
|thermal conductivity=amorphous: 0.519
|thermal expansion at 25=amorphous: 37
|speed of sound rod at 20=3350
|magnetic susceptibility= {{val|−25.0|e=−6}}
|magnetic susceptibility ref= &#x20;(298&nbsp;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=10
|Shear modulus=3.7
|Bulk modulus=8.3
|Poisson ratio=0.33
|Mohs hardness=2.0
|Brinell hardness=736
|CAS number=7782-49-2
|isotopes=
{{infobox element/isotopes decay2 | mn=72 | sym=Sé | na=[[radioisotop sintétis|syn]] | hl=8.4&nbsp;d | dm1=[[electron capture|ε]] | de1=– | link1=arsenic-72 | pn1=72 | ps1=As | dm2=[[radiasi gamma|γ]] | de2=0.046 | pn2= | ps2=–}}
{{infobox element/isotopes stable | mn=74 | sym=Sé | na=0.86% | n=40 |firstlinks=yes}}
{{infobox element/isotopes decay2 | mn=75 | sym=Sé | na=syn | hl=119.8&nbsp;d | dm1=ε | de1=– | link1=arsenic-75 | pn1=75 | ps1=As | dm2=γ | de2=0.264, 0.136,<br/>0.279 | pn2= | ps2=–}}
{{Infobox element/isotopes stable | mn=76 | sym=Sé | na=9.23% | n=42 |firstlinks=no}}
{{Infobox element/isotopes stable | mn=77 | sym=Sé | na=7.60% | n=43 |firstlinks=no}}
{{Infobox element/isotopes stable | mn=78 | sym=Sé | na=23.69% | n=44 |firstlinks=no}}
{{infobox element/isotopes decay | mn=79 | sym=Sé | na=[[trace radioisotope|trace]] | hl=3.27&times;10<sup>5</sup>&nbsp;y | dm=[[paluruhan béta|β<sup>−</sup>]] | de=0.151 |link1=brom-79 | pn=79 | ps=Br}}
{{infobox element/isotopes stable | mn=80 | sym=Sé | na=49.80% | n=46 |firstlinks=no}}
{{infobox element/isotopes decay | mn=82 | sym=Sé | na=8.82% | hl=1.08&times;10<sup>20</sup>&nbsp;y | dm=[[paluruhan béta ganda|β<sup>−</sup>β<sup>−</sup>]] | de=2.995 | link1=krypton-82 | pn=82 | ps=Kr}}
|isotopes comment=
|naming=mawit [[Séléné]], Dewi bulan Yunani
|discovery and first isolation by=[[Jöns Jakob Berzelius]] miwah [[Johann Gottlieb Gahn]]
|discovery date=1817
|QID=Q876
}}<!--

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