Dysprosium (pípè /dɪsˈproʊziəm/, dis-PROE-zee-əm) je ipilese elegbogi pelu ami-idamo Dy ati nomba atomu 66.
Dysprosium, 66Dy |
| Dysprosium |
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| Pípè | /dɪsˈproʊziəm/ (dis-PROH-zee-əm) |
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| Ìhànsójú | silvery white |
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| Ìwúwo átọ̀mù Ar, std(Dy) | 162.500(1)[1] |
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| Dysprosium ní orí tábìlì àyè |
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| Nọ́mbà átọ̀mù (Z) | 66 |
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| Ẹgbẹ́ | group n/a |
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| Àyè | àyè 6 |
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| Àdìpọ̀ | Àdìpọ̀-f |
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| Ẹ̀ka ẹ́límẹ́ntì | Lanthanide |
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| Ìtò ẹ̀lẹ́ktrọ́nù | [Xe] 4f10 6s2 |
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| Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 28, 8, 2 |
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| Àwọn ohun ìní ara |
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| Ìfarahàn at STP | solid |
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| Ìgbà ìyọ́ | 1680 K (1407 °C, 2565 °F) |
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| Ígbà ìhó | 2840 K (2562 °C, 4653 °F) |
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| Kíki (near r.t.) | 8.540 g/cm3 |
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| when liquid (at m.p.) | 8.37 g/cm3 |
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| Heat of fusion | 11.06 kJ/mol |
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| Heat of | 280 kJ/mol |
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| Molar heat capacity | 27.7 J/(mol·K) |
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pressure| P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
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| at T (K) | 1378 | 1523 | (1704) | (1954) | (2304) | (2831) |
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| Atomic properties |
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| Oxidation states | 0,[2] +1, +2, +3, +4 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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| Electronegativity | Pauling scale: 1.22 |
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| Atomic radius | empirical: 178 pm |
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| Covalent radius | 192±7 pm |
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 Color lines in a spectral rangeSpectral lines of dysprosium |
| Other properties |
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| Natural occurrence | primordial |
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| Crystal structure | hexagonal |
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| Speed of sound thin rod | 2710 m/s (at 20 °C) |
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| Thermal expansion | (r.t.) (α, poly) 9.9 µm/(m·K) |
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| Thermal conductivity | 10.7 W/(m·K) |
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| Electrical resistivity | (r.t.) (α, poly) 926 n Ω·m |
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| Magnetic ordering | paramagnetic at 300 K |
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| Young's modulus | (α form) 61.4 GPa |
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| Shear modulus | (α form) 24.7 GPa |
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| Bulk modulus | (α form) 40.5 GPa |
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| Poisson ratio | (α form) 0.247 |
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| Vickers hardness | 540 MPa |
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| Brinell hardness | 500 MPa |
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| CAS Number | 7429-91-6 |
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| Main isotopes of dysprosium |
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| Isotope | Abundance | Half-life (t1/2) | Decay mode | Product |
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| 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 |
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