Yttrium
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| Yttrium |
|
39Y
|
|
|
| Ìhànsójú |
silvery white
 |
| Àwọn ìdámọ́ wíwọ́pọ̀ |
| Orúkọ, àmì-ìdámọ́, nọ́mbà |
yttrium, Y, 39 |
| Ẹ̀ka ẹ́límẹ̀nti |
transition metal |
| Ẹgbẹ́, àsìkò, àdìpò |
3, 5, d |
| Ìwúwo átọ́mù |
88.90585 |
| Ìtòléra ẹ̀lẹ́ktrónì |
[Kr] 4d1 5s2
2, 8, 18, 9, 2 |
| Physical properties |
| Phase |
solid |
| Density (near r.t.) |
4.472 g·cm−3 |
| Liquid density at m.p. |
4.24 g·cm−3 |
| Melting point |
1799 K, 1526 °C, 2779 °F |
| Boiling point |
3609 K, 3336 °C, 6037 °F |
| Heat of fusion |
11.42 kJ·mol−1 |
| Heat of vaporization |
365 kJ·mol−1 |
| Molar heat capacity |
26.53 J·mol−1·K−1 |
| Vapor pressure |
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T (K) |
1883 |
2075 |
(2320) |
(2627) |
(3036) |
(3607) |
|
| Atomic properties |
| Oxidation states |
3, 2, 1 |
| Electronegativity |
1.22 (Pauling scale) |
| Ionization energies |
1st: 600 kJ·mol−1 |
| 2nd: 1180 kJ·mol−1 |
| 3rd: 1980 kJ·mol−1 |
| Atomic radius |
180 pm |
| Covalent radius |
190±7 pm |
| Miscellanea |
| Crystal structure |
hexagonal
|
| Magnetic ordering |
paramagnetic[1] |
| Electrical resistivity |
(r.t.) (α, poly) 596 nΩ·m |
| Thermal conductivity |
17.2 W·m−1·K−1 |
| Thermal expansion |
(r.t.) (α, poly)
10.6 µm/(m·K) |
| Speed of sound (thin rod) |
(20 °C) 3300 m·s−1 |
| Young's modulus |
63.5 GPa |
| Shear modulus |
25.6 GPa |
| Bulk modulus |
41.2 GPa |
| Poisson ratio |
0.243 |
| Brinell hardness |
589 MPa |
| CAS registry number |
7440-65-5 |
| Àwọn ísótòpù dídúró jùlọ |
| Main article: Àwọn ísótòpù yttrium |
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· r |
