Cobalt (Hon-ngî: 鈷 gǔ) he yit-tsúng Fa-ho̍k Ngièn-su, fa-ho̍k fù-ho vì Co, ngièn-tsṳ́ su-muk he 27, tshai Ngièn-su Tsû-khì péu chûng thi ngi-sṳ̍p-chhit vi.
快速預覽 ngoi-kôn, Kî-pún sin-sit ...
Cobalt, 27Co| ngoi-kôn |
|---|
hard lustrous gray metal
electrolytically refined cobalt chips |
| Kî-pún sin-sit |
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| Miàng, fù-ho |
Cobalt, Co |
|---|
| ngoi-hìn |
hard lustrous gray metal |
|---|
| Cobalt chhai chû-khì-péu ke vi-chi |
|---|
|
|
| ngièn-chṳ́ sì-sú |
27 |
|---|
| ngièn-chṳ́-liòng (±) |
58.933194(4)[1] |
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| ngièn-su lui-phe̍t |
ko-thu kîm-su̍k |
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| Chhu̍k, fûn-khî |
9 chhu̍k, d-block |
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| chû-khì |
period 4 |
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| thien-chṳ́ phài-lie̍t |
[Ar] 3d7 4s2 |
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| per shell |
2, 8, 15, 2 |
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| vu̍t-lî sin-chṳt |
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| ngân-set |
metallic gray |
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| Siông |
ku-thí |
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| yùng-tiám |
1768 K (1495 °C, 2723 °F) |
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| pui-tiám |
3200 K (2927 °C, 5301 °F) |
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| Me̍t-thu near Sit-vûn |
8.90 g·cm−3 |
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|
8.86 g·cm−3 |
| Yùng-fa-ngie̍t |
16.06 kJ·mol−1 |
|---|
| Chîn-fat-ngie̍t |
377 kJ·mol−1 |
|---|
| Ngie̍t-yùng-liong |
24.81 J·mol−1·K−1 |
|---|
chîn-hi-ap
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| chhai T (K) |
1790 |
1960 |
2165 |
2423 |
2755 |
3198 |
|
| Ngièn-chṳ́ sin-chṳt |
|---|
| Yông-fa-su |
−3, −1, +1, +2, +3, +4, +5[2] (an amphoteric oxide) |
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| Thien-fu-sin |
Pauling scale: 1.88 |
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| Thien-lì-nèn |
1st: 760.4 kJ·mol−1
2nd: 1648 kJ·mol−1
3rd: 3232 kJ·mol−1
(more) |
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| Ngièn-chṳ́ pan-kang |
empirical: 125 pm |
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| Khiung-ka pan-kang |
Low spin: 126±3 pm
High spin: 150±7 pm |
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| Miscellanea |
|---|
| Chîn-thí keu-chho |
hexagonal close-packed (hcp) |
|---|
| Sâng-suk thin rod |
4720 m·s−1 (at 20 °C) |
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| Ngie̍t-phàng-chong |
13.0 µm·m−1·K−1 (at 25 °C) |
|---|
| Ngie̍t-chhòn-thô-li̍t |
100 W·m−1·K−1 |
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| Thien-chú-li̍t |
62.4 nΩ·m (at 20 °C) |
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| Chhṳ̀-sin |
ferromagnetic |
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| Young's modulus |
209 GPa |
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| Shear modulus |
75 GPa |
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| Bulk modulus |
180 GPa |
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| Poisson ratio |
0.31 |
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| Mohs hardness |
5.0 |
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| Vickers hardness |
1043 MPa |
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| Brinell hardness |
470–3000 MPa |
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| CAS Registry Number |
7440-48-4 |
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| Le̍k-sú |
|---|
| Fat-hien |
Georg Brandt (1732) |
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| Chui vún-thin ke thùng-vi-su |
|---|
|
Chú vùn-chông: Cobalt ke thùng-vi-su |
| iso |
NA |
half-life |
DM |
DE (MeV) |
DP |
| 56Co |
syn |
77.27 d |
ε |
4.566 |
56Fe |
| 57Co |
syn |
271.79 d |
ε |
0.836 |
57Fe |
| 58Co |
syn |
70.86 d |
ε |
2.307 |
58Fe |
| 59Co |
100% |
59Co is stable with 32 neutrons |
| 60Co |
syn |
5.2714 y |
β−, γ |
2.824 |
60Ni |
|
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