Dysprosium

Dysprosium, ₆₆Dy
Dysprosium
Pípè	/dɪsˈproʊziəm/ (dis-PROH-zee-əm)
Ìhànsójú	silvery white
Ìwúwo átọ̀mù Ar, std(Dy)	162.500(1)
Dysprosium ní orí tábìlì àyè
	terbium ← dysprosium → holmium
Nọ́mbà átọ̀mù (Z)	66
Ẹgbẹ́	group n/a
Àyè	àyè 6
Àdìpọ̀	Àdìpọ̀-f
Ẹ̀ka ẹ́límẹ́ntì	Lanthanide
Ìtò ẹ̀lẹ́ktrọ́nù	[Xe] 4f10 6s2
Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan	2, 8, 18, 28, 8, 2
Àwọn ohun ìní ara
Ìfarahàn at STP	solid
Ìgbà ìyọ́	1680 K (1407 °C, 2565 °F)
Ígbà ìhó	2840 K (2562 °C, 4653 °F)
Kíki (near r.t.)	8.540 g/cm3
when liquid (at m.p.)	8.37 g/cm3
Heat of fusion	11.06 kJ/mol
Heat of	280 kJ/mol
Molar heat capacity	27.7 J/(mol·K)
Atomic properties
Oxidation states	0, +1, +2, +3, +4 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment
Electronegativity	Pauling scale: 1.22
Atomic radius	empirical: 178 pm
Covalent radius	192±7 pm
	Color lines in a spectral rangeSpectral lines of dysprosium
Other properties
Natural occurrence	primordial
Crystal structure	hexagonal
Speed of sound thin rod	2710 m/s (at 20 °C)
Thermal expansion	(r.t.) (α, poly) 9.9 µm/(m·K)
Thermal conductivity	10.7 W/(m·K)
Electrical resistivity	(r.t.) (α, poly) 926 n Ω·m
Magnetic ordering	paramagnetic at 300 K
Young's modulus	(α form) 61.4 GPa
Shear modulus	(α form) 24.7 GPa
Bulk modulus	(α form) 40.5 GPa
Poisson ratio	(α form) 0.247
Vickers hardness	540 MPa
Brinell hardness	500 MPa
CAS Number	7429-91-6
Main isotopes of dysprosium
	Àdàkọ:Category-inline; wo; ọ̀rọ̀; àtúnṣe; \| references

Dysprosium (pípè /dɪsˈproʊziəm/, dis-PROE-zee-əm) je ipilese elegbogi pelu ami-idamo Dy ati nomba atomu 66.

Àyọkà yìí tàbí apá rẹ̀ únfẹ́ àtúnṣe sí.

Ẹ le fẹ̀ jù báyìí lọ tàbí kí ẹ ṣàtúnṣe rẹ̀ lọ́nà tí yíò mu kúnrẹ́rẹ́. Ẹ ran Wikipedia lọ́wọ́ láti fẹ̀ẹ́ jù báyìí lọ.

Itumosi

↑ Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna 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.
↑ Yttrium and all lanthanides except Ce, Pm, Eu, Tm, Yb 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.

[CIAAW2013-1] Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna 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.

[Cloke1993-2] Yttrium and all lanthanides except Ce, Pm, Eu, Tm, Yb 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.

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