Dysprosium

Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
Lọ sí: atọ́ka, àwárí
Dysprosium
66Dy
-

Dy

Cf
terbiumdysprosiumholmium
Ìhànsójú
silvery white
Àwọn ìdámọ́ wíwọ́pọ̀
Orúkọ, àmì-ìdámọ́, nọ́mbà dysprosium, Dy, 66
Ìpèlóhùn /dɪsˈproʊziəm/
dis-PROE-zee-əm
Ẹ̀ka ẹ́límẹ̀nti lanthanide
Ẹgbẹ́, àsìkò, àdìpò n/a6, f
Ìwúwo átọ́mù 162.500
Ìtòléra ẹ̀lẹ́ktrónì [Xe] 4f10 6s2
2, 8, 18, 28, 8, 2
Physical properties
Phase solid
Density (near r.t.) 8.540 g·cm−3
Liquid density at m.p. 8.37 g·cm−3
Melting point 1680 K, 1407 °C, 2565 °F
Boiling point 2840 K, 2562 °C, 4653 °F
Heat of fusion 11.06 kJ·mol−1
Heat of vaporization 280 kJ·mol−1
Molar heat capacity 27.7 J·mol−1·K−1
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1378 1523 (1704) (1954) (2304) (2831)
Atomic properties
Oxidation states 3, 2 (weakly basic oxide)
Electronegativity 1.22 (Pauling scale)
Ionization energies 1st: 573.0 kJ·mol−1
2nd: 1130 kJ·mol−1
3rd: 2200 kJ·mol−1
Atomic radius 178 pm
Covalent radius 192±7 pm
Miscellanea
Crystal structure hexagonal
Dysprosium has a hexagonal crystal structure
Magnetic ordering paramagnetic at 300 K
Electrical resistivity (r.t.) (α, poly) 926 nΩ·m
Thermal conductivity 10.7 W·m−1·K−1
Thermal expansion (r.t.) (α, poly) 9.9 µm/(m·K)
Speed of sound (thin rod) (20 °C) 2710 m·s−1
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 registry number 7429-91-6
Àwọn ísótòpù dídúró jùlọ
Main article: Àwọn ísótòpù dysprosium
iso NA half-life DM DE (MeV) DP
154Dy syn 3.0×106y α 2.947 150Gd
156Dy 0.06% 1×1018y α  ? 152Gd
158Dy 0.10% 158Dy is stable with 92 neutrons
160Dy 2.34% 160Dy is stable with 94 neutrons
161Dy 18.91% 161Dy is stable with 95 neutrons
162Dy 25.51% 162Dy is stable with 96 neutrons
163Dy 24.90% 163Dy is stable with 97 neutrons
164Dy 28.18% 164Dy is stable with 98 neutrons
· r

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


Itumosi[àtúnṣe | àtúnṣe àmìọ̀rọ̀]