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Ytterbium |
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Pípè | /ɪˈtɜːrbiəm/ (i-TUR-bee-əm) |
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Ìhànsójú | silvery white |
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Ìwúwo átọ̀mù Ar, std(Yb) | 173.045(10)[1] |
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Ytterbium ní orí tábìlì àyè |
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Nọ́mbà átọ̀mù (Z) | 70 |
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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] 4f14 6s2 |
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Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 32, 8, 2 |
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Àwọn ohun ìní ara |
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Ìfarahàn at STP | solid |
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Ìgbà ìyọ́ | 1097 K (824 °C, 1515 °F) |
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Ígbà ìhó | 1469 K (1196 °C, 2185 °F) |
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Kíki (near r.t.) | 6.90 g/cm3 |
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when liquid (at m.p.) | 6.21 g/cm3 |
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Heat of fusion | 7.66 kJ/mol |
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Heat of | 159 kJ/mol |
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Molar heat capacity | 26.74 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)
|
736
|
813
|
910
|
1047
|
(1266)
|
(1465)
|
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Atomic properties |
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Oxidation states | +1, +2, +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
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Electronegativity | Pauling scale: ? 1.1 |
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Atomic radius | empirical: 176 pm |
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Covalent radius | 187±8 pm |
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Spectral lines of ytterbium |
Other properties |
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Natural occurrence | primordial |
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Crystal structure | (fcc) |
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Speed of sound thin rod | 1590 m/s (at 20 °C) |
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Thermal expansion | (r.t.) (β, poly) 26.3 µm/(m·K) |
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Thermal conductivity | 38.5 W/(m·K) |
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Electrical resistivity | (r.t.) (β, poly) 0.250 µ Ω·m |
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Magnetic ordering | paramagnetic[2] |
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Young's modulus | (β form) 23.9 GPa |
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Shear modulus | (β form) 9.9 GPa |
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Bulk modulus | (β form) 30.5 GPa |
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Poisson ratio | (β form) 0.207 |
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Vickers hardness | 206 MPa |
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Brinell hardness | 343 MPa |
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CAS Number | 7440-64-4 |
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Main isotopes of ytterbium |
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Àdàkọ:Category-inline | references |