Thulium, 69Tmngoi-kôn |
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silvery gray
![](//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Thulium_sublimed_dendritic_and_1cm3_cube.jpg/250px-Thulium_sublimed_dendritic_and_1cm3_cube.jpg) |
Kî-pún sin-sit |
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Miàng, fù-ho |
Thulium, Tm |
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ngoi-hìn |
silvery gray |
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Thulium chhai chû-khì-péu ke vi-chi |
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|
ngièn-chṳ́ sì-sú |
69 |
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ngièn-chṳ́-liòng (±) |
168.93422(2)[1] |
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ngièn-su lui-phe̍t |
lanthanum-hi |
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Chhu̍k, fûn-khî |
n/a, f-block |
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chû-khì |
period 6 |
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thien-chṳ́ phài-lie̍t |
[Xe] 4f13 6s2 |
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per shell |
2, 8, 18, 31, 8, 2 |
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vu̍t-lî sin-chṳt |
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Siông |
ku-thí |
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yùng-tiám |
1818 K (1545 °C, 2813 °F) |
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pui-tiám |
2223 K (1950 °C, 3542 °F) |
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Me̍t-thu near Sit-vûn |
9.32 g·cm−3 |
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8.56 g·cm−3 |
Yùng-fa-ngie̍t |
16.84 kJ·mol−1 |
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Chîn-fat-ngie̍t |
191 kJ·mol−1 |
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Ngie̍t-yùng-liong |
27.03 J·mol−1·K−1 |
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chîn-hi-ap
P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
|
chhai T (K)
|
1117
|
1235
|
1381
|
1570
|
(1821)
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(2217)
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Ngièn-chṳ́ sin-chṳt |
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Yông-fa-su |
2, 3 (a basic oxide) |
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Thien-fu-sin |
Pauling scale: 1.25 |
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Thien-lì-nèn |
1st: 596.7 kJ·mol−1 2nd: 1160 kJ·mol−1 3rd: 2285 kJ·mol−1 |
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Ngièn-chṳ́ pan-kang |
empirical: 176 pm |
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Khiung-ka pan-kang |
190±10 pm |
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Miscellanea |
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Chîn-thí keu-chho |
hexagonal close-packed (hcp) |
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Ngie̍t-phàng-chong |
poly: 13.3 µm·m−1·K−1 (at r.t.) |
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Ngie̍t-chhòn-thô-li̍t |
16.9 W·m−1·K−1 |
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Thien-chú-li̍t |
poly: 676 nΩ·m (at r.t.) |
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Chhṳ̀-sin |
paramagnetic (at 300 K) |
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Young's modulus |
74.0 GPa |
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Shear modulus |
30.5 GPa |
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Bulk modulus |
44.5 GPa |
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Poisson ratio |
0.213 |
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Vickers hardness |
470–650 MPa |
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Brinell hardness |
470–900 MPa |
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CAS Registry Number |
7440-30-4 |
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Le̍k-sú |
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Hí-miàng |
after Thule, a mythical region in Scandinavia |
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Hoat-kiàn kap siōng chá ê tông-ūi-sò͘ |
Per Teodor Cleve (1879) |
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Chui vún-thin ke thùng-vi-su |
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Chú vùn-chông: Thulium ke thùng-vi-su |
|
Decay modes in parentheses are predicted, but have not yet been observed |
Thulium (Hon-ngî: 銩 diū) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Tm, ngièn-chṳ́ su-muk he 69.