Mal:Kotak inpo sélénium

Sélénium, ₃₄Sé
Sélénium; seleniyum·
Pabaosan	/sɪˈliːniəm/ (sə-LEE-nee-əm)
Cingakan	alotrop klau sané kacingak sekadi logam, abang, miwah ireng (nénten kagambarang)
Bobot atom standar Ar, std(Sé)	78.971(8)
Sélénium ring tabél périodik
	arsenik ← sélénium → brom
Wilangan atom (Z)	34
Watek	golongan 16 (kalkogén)
Période	période 4
Blok	blok-p
Konpigurasi éléktron	[Ar] 3d10 4s2 4p4
Éléktron per kulit	2, 8, 18, 6
Cecirén pisik
Pase ring STP	padet
Titik lebur	494 K (221 °C, 430 °F)
Titik didih	958 K (685 °C, 1265 °F)
Kapadetan (nampek s.r.)	gray: 4.81 g/cm3 ; alpha: 4.39 g/cm3 ; vitreous: 4.28 g/cm3
ri kala éncéh (ring t.l.)	3.99 g/cm3
Titik kritis	1766 K, 27.2 MPa
Panes fusi	gray: 6.69 kJ/mol
Panes panguapan	95.48 kJ/mol
Kapasitas panes molar	25.363 J/(mol·K)
Cecirén atom
Paindikan oksidasi	−2, −1, 0, +1, +2, +3, +4, +5, +6 (oksida asam kuat)
Kaéléktronégatipan	skala Pauling: 2.55
Wasa ionisasi	ka-1: 941.0 kJ/mol ; ka-2: 2045 kJ/mol ; ka-3: 2973.7 kJ/mol ; ;
Jeriji atom	émpiris: 120 pm
Jeriji kovalén	120±4 pm
Jeriji Van der Waals	190 pm
Cecirén liyanan
Rupa alami	primordial
Struktur kristal	trigon
Kagelisan swara pales tipis	3350 m/s (ring 20 °C)
Ékspansi térmal	amorphous: 37 µm/(m⋅K) (ring 25 °C)
Konduktivitas térmal	amorphous: 0.519 W/(m⋅K)
bacakan magnétik	diamagnétik
Karentanan magnétik molar	−25.0×10−6 cm3/mol (298 K)
Modulus Young	10 GPa
Modulus Shear	3.7 GPa
Modulus Bulk	8.3 GPa
Rasio Poisson	0.33
Kakatosan Mohs	2.0
Kakatosan Brinell	736 MPa
Nomor CAS	7782-49-2
Lelintihan
Pangaranan	mawit Séléné, Dewi bulan Yunani
Panemuan miwah isolasi kapertama	Jöns Jakob Berzelius miwah Johann Gottlieb Gahn (1817)
Isotop utama sélénium
γ	–
γ	–
	Kategori:Sélénium; cingak; pabligbagan; uah; \| pustaka

Sé: data m.p. kat ( c p u )
	ring	itung saking C	bina	parihindik	pus
C	221	—	—
K	494	494	0
F	430	430	0
présisi maks	0
WD	392 392				^[6]
dagingan	C: 221, K: 494, F: 430
pabligbagan

Sé: data t.d. kat ( c p u )
	ring	itung saking C	bina	parihindik	pus
C	685	—	—
K	958	958	0
F	1265	1265	0
présisi maks	0
WD	1.265 1.265				^[6]
dagingan	C: 685, K: 958, F: 1265
pabligbagan

PTSélénium

As ← i'box As	^iso ₃₄Sé (U) infobox (U) isobox	→ Br i'box Br
Commons Wikidata:Q876 Indéks ring PT: § sor • Kaca
c p u

c p u Pupulan data kabaca olih {{Infobox element}}
Aran miwah pangenal	cingak uah
Gambar duur (sesirah, alt)	cingak uah
Cara pabaosan	cingak uah
~~Kategori (banwiki)~~ depr	cingak uah
Bobot atom standar	cingak uah
isotop pinih tegteg	cingak uah
Rupa alami	cingak uah
Pase ring STP	cingak uah
Paindikan oksidasi	cingak uah
Gambar garis spéktrum	cingak uah
Konpigurasi éléktron (cmt, ref)	cingak uah
Simbol paistilah * (cmt, ref)	cingak uah
Wikidata *	cingak uah
* Nénten kaanggén malih {{Infobox element}} (2019-02-03) Cingak taler {{Infobox element/symbol-to--navbox}}

Pustaka

↑ Méija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305.
↑ A Se(0) atom has been identified using DFT in [ReOSe(2-pySe)₃]; see Cargnelutti, Roberta; Lang, Ernesto S.; Piquini, Paulo; Abram, Ulrich (2014). "Synthesis and structure of [ReOSe(2-Se-py)3]: A rhenium(V) complex with selenium(0) as a ligand". Inorganic Chemistry Communications. 45: 48–50. doi:10.1016/j.inoche.2014.04.003. ISSN 1387-7003.
↑ Mal:Greenwood&Earnshaw
↑ Magnetic susceptibility of the elements and inorganic compounds, ring Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (édisi ka-86). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
↑ ^6,0 ^6,1 http://www.cdc.gov/niosh/npg/npgd0550.html.

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[CIAAW2013-1] Méija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305.

[2] A Se(0) atom has been identified using DFT in [ReOSe(2-pySe)₃]; see Cargnelutti, Roberta; Lang, Ernesto S.; Piquini, Paulo; Abram, Ulrich (2014). "Synthesis and structure of [ReOSe(2-Se-py)3]: A rhenium(V) complex with selenium(0) as a ligand". Inorganic Chemistry Communications. 45: 48–50. doi:10.1016/j.inoche.2014.04.003. ISSN 1387-7003.

[3] Mal:Greenwood&Earnshaw

[4] Magnetic susceptibility of the elements and inorganic compounds, ring Lide, D. R., ed. (2005). CRC Handbook of Chemistry and Physics (édisi ka-86). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

[5] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

[wikidata-b2fde376cb5c6133631af8f69b7abd716faa3924-v3-6] 6,0 ^6,1 http://www.cdc.gov/niosh/npg/npgd0550.html.

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