Gallium, 31Gangoi-kôn |
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silver-white
![](http://178.128.105.246/content-http-upload.wikimedia.org/wikipedia/commons/thumb/9/92/Gallium_crystals.jpg/250px-Gallium_crystals.jpg) |
Kî-pún sin-sit |
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Miàng, fù-ho |
Gallium, Ga |
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ngoi-hìn |
silver-white |
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Gallium chhai chû-khì-péu ke vi-chi |
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|
ngièn-chṳ́ sì-sú |
31 |
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ngièn-chṳ́-liòng (±) |
69.723(1)[1] |
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ngièn-su lui-phe̍t |
heu-ko-thu kîm-su̍k |
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Chhu̍k, fûn-khî |
13 chhu̍k, p-block |
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chû-khì |
period 4 |
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thien-chṳ́ phài-lie̍t |
[Ar] 3d10 4s2 4p1 |
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per shell |
2, 8, 18, 3 |
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vu̍t-lî sin-chṳt |
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Siông |
ku-thí |
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yùng-tiám |
302.9146 K (29.7646 °C, 85.5763 °F) |
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pui-tiám |
2673 K (2400 °C, 4352 °F)[2] |
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Me̍t-thu near Sit-vûn |
5.91 g·cm−3 |
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6.095 g·cm−3 |
Yùng-fa-ngie̍t |
5.59 kJ·mol−1 |
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Chîn-fat-ngie̍t |
256 kJ·mol−1[2] |
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Ngie̍t-yùng-liong |
25.86 J·mol−1·K−1 |
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chîn-hi-ap
P (Pa)
|
1
|
10
|
100
|
1 k
|
10 k
|
100 k
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chhai T (K)
|
1310
|
1448
|
1620
|
1838
|
2125
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2518
| |
Ngièn-chṳ́ sin-chṳt |
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Yông-fa-su |
3, 2, 1, −1, −2, −4, −5[3] (an amphoteric oxide) |
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Thien-fu-sin |
Pauling scale: 1.81 |
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Thien-lì-nèn |
1st: 578.8 kJ·mol−1 2nd: 1979.3 kJ·mol−1 3rd: 2963 kJ·mol−1 (more) |
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Ngièn-chṳ́ pan-kang |
empirical: 135 pm |
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Khiung-ka pan-kang |
122±3 pm |
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Van der Waals pan-kang |
187 pm |
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Miscellanea |
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Chîn-thí keu-chho |
orthorhombic |
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Sâng-suk thin rod |
2740 m·s−1 (at 20 °C) |
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Ngie̍t-phàng-chong |
18 µm·m−1·K−1 (at 25 °C) |
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Ngie̍t-chhòn-thô-li̍t |
40.6 W·m−1·K−1 |
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Thien-chú-li̍t |
270 nΩ·m (at 20 °C) |
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Chhṳ̀-sin |
diamagnetic |
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Young's modulus |
9.8 GPa |
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Poisson ratio |
0.47 |
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Mohs hardness |
1.5 |
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Brinell hardness |
56.8–68.7 MPa |
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CAS Registry Number |
7440-55-3 |
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Le̍k-sú |
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Hí-miàng |
after Gallia (Latin for: France), homeland of the discoverer |
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Yi-chhet |
Dmitri Mendeleev (1871) |
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Hoat-kiàn kap siōng chá ê tông-ūi-sò͘ |
Lecoq de Boisbaudran (1875) |
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Chui vún-thin ke thùng-vi-su |
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Chú vùn-chông: Gallium ke thùng-vi-su |
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Gallium (Hon-ngî: 鎵 jiā) he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì Ga, ngièn-chṳ́ su-muk he 31.