| Dysprosium |
|
66Dy
|
|
|
| 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/a, 6, 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
|
| 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 |
|
|
|
· r |
Dysprosium (pípè /dɪsˈproʊziəm/, dis-PROE-zee-əm) je ipilese elegbogi pelu ami-idamo Dy ati nomba atomu 66.
