Éuropium

Éuropium, ₆₃Éu
Éuropium; ᵒehuropiyum·
Pabaosan	/jʊəˈroʊpiəm/ (yoor-OH-pee-əm)
Cingakan	petak pérak, antuk warna kuning lémlém; sakéwanten kapah kacingak tanpa pagentosan warna oksida
Éuropium ring tabél périodik
	samarium ← éuropium → gadolinium
Wilangan atom (Z)	63
Watek	n/a
Période	période 6
Blok	blok-f
Konpigurasi éléktron	[Xé] 4f7 6s2
Éléktron per kulit	2, 8, 18, 25, 8, 2
Cecirén pisik
Pase ring STP	padet
Titik lebur	1099 K (826 °C, 1519 °F)
Titik didih	1802 K (1529 °C, 2784 °F)
Kapadetan (nampek s.r.)	5.244 g/cm3
ri kala éncéh (ring t.l.)	5.13 g/cm3
Panes fusi	9.21 kJ/mol
Panes panguapan	176 kJ/mol
Kapasitas panes molar	27.66 J/(mol·K)
Cecirén atom
Paindikan oksidasi	0, +2, +3 (oksida basa tenga)
Kaéléktronégatipan	skala Pauling: 1.2
Wasa ionisasi	ka-1: 547.1 kJ/mol ; ka-2: 1085 kJ/mol ; ka-3: 2404 kJ/mol ; ;
Jeriji atom	émpiris: 180 pm
Jeriji kovalén	198±6 pm
Cecirén liyanan
Rupa alami	primordial
Struktur kristal	kubus mapusat badan (bcc)
Ékspansi térmal	poly: 35.0 µm/(m⋅K) (ring r.t.)
Konduktivitas térmal	est. 13.9 W/(m⋅K)
Resistivitas listrik	poly: 0.900 µΩ⋅m (at r.t.)
bacakan magnétik	paramagnétik
Karentanan magnétik molar	+34000.0×10−6 cm3/mol
Modulus Young	18.2 GPa
Modulus Shear	7.9 GPa
Modulus Bulk	8.3 GPa
Rasio Poisson	0.152
Kakatosan Vickers	165–200 MPa
Nomor CAS	7440-53-1
Lelintihan
Pangaranan	mawit Éropa
Panemuan miwah isolasi kapertama	Eugène-Anatole Demarçay (1896, 1901)
Isotop utama éuropium
β−	152Gd
	Kategori:Éuropium; cingak; pabligbagan; uah; \| pustaka

Éuropium silih tunggil datu kimia antuk simbol Éu miwah wilangan atom 63. Éuropium punika lantanida pinih réaktif kauningin, patut kasimpan ring cairan inert antuk ngsaibin saking oksigén atmosfir utawi kaayuban. Éuropium taler lantanida pinih bélék, mawinan nyidayang pényok nganggé kuku miwah aluh kagetep nganggén tiuk. Ri kala oksidasi kaicalang, logam kacingak putih nyalang. Éuropium kaisolasi warsa 1901 miwah kaaranin banua Éropa.^[5] Manados anggota khas saking dérét lantanida, éuropium ketah nyané ring paindikan oksidasi +3, menawi ketah masih ring paindikan oksidasi +2. Samian senyawa europium antuk wilangan oksidasi +2 akedik réduksi. Europium nénten mawiguna ring biologis sané signifikan miwah rélatif nénten nubain pantaraning logam baat liyanana. Makéhan éuropium kaanggén luruhan senyawa éuropium. Éuropium dados silih tunggil datu tanah langka pinih langka ring Gumi.^[6]

Pustaka

↑ Mal:Greenwood&Earnshaw
↑ Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.
↑ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (édisi ka-86th). 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.
↑ "Periodic Table: Europium". Royal Society of Chemistry.
↑ Stwertka, Albert. A Guide to the Elements, Oxford University Press, 1996, p. 156. ISBN 0-19-508083-1

Pranala jaba

It's Elemental – Europium

[1] Mal:Greenwood&Earnshaw

[Cloke1993-2] Yttrium and all lanthanides except Ce and Pm have been observed in the oxidation state 0 in bis(1,3,5-tri-t-butylbenzene) complexes, see Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: 17–24. doi:10.1039/CS9932200017. and Arnold, Polly L.; Petrukhina, Marina A.; Bochenkov, Vladimir E.; Shabatina, Tatyana I.; Zagorskii, Vyacheslav V.; Cloke (2003-12-15). "Arene complexation of Sm, Eu, Tm and Yb atoms: a variable temperature spectroscopic investigation". Journal of Organometallic Chemistry. 688 (1–2): 49–55. doi:10.1016/j.jorganchem.2003.08.028.

[magnet-3] Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (édisi ka-86th). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

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

[5] "Periodic Table: Europium". Royal Society of Chemistry.

[Stwertka-6] Stwertka, Albert. A Guide to the Elements, Oxford University Press, 1996, p. 156. ISBN 0-19-508083-1

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