# Â-yèn[phiên-siá | kói ngièn-sṳ́-mâ]

Â-yèn,  30Zn| ngoi-kôn |
| --- |
|
silver-gray  |
| Kî-pún sin-sit |
| Miàng, fù-ho |
Â-yèn, Zn |
| Yîn-ngî |
zinc |
| phe̍t-miàng |
Pha̍k-yèn, sîn |
| ngoi-hìn |
silver-gray |
| Â-yèn chhai chû-khì-péu ke vi-chi |
|

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 | – ↑ **Zn** ↓ Cd |
| thùng ← **Â-yèn** → gallium |

 |

 |
| ngièn-chṳ́ sì-sú |
30 |
| ngièn-chṳ́-liòng (±) |
65.38(2)  |
| ngièn-su lui-phe̍t |   ko-thu kîm-su̍k, alternatively considered a post-transition metal |
| Chhu̍k, fûn-khî | 12 chhu̍k, d-block  |
| chû-khì |
period 4  |
| thien-chṳ́ phài-lie̍t | [Ar] 3d10 4s2  |
| per shell |
2, 8, 18, 2 |
| vu̍t-lî sin-chṳt |
| Siông |
Ku-thí |
| yùng-tiám |
692.68 K ​(419.53 °C, ​787.15 °F)  |
| pui-tiám |
1180 K ​(907 °C, ​1665 °F)  |
| Me̍t-thu near Sit-vûn |
7.14 g·cm−3 |
|
6.57 g·cm−3  |
| Yùng-fa-ngie̍t |
7.32 kJ·mol−1  |
| Chîn-fat-ngie̍t |
115 kJ·mol−1  |
| Ngie̍t-yùng-liong |
25.470 J·mol−1·K−1  |
| **chîn-hi-ap**

|  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| P (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
| chhai T (K) | 610 | 670 | 750 | 852 | 990 | 1179 |

 |
| Ngièn-chṳ́ sin-chṳt |
| Yông-fa-su | -2, 0, +1, **+2** ​(an amphoteric oxide) |
| Thien-fu-sin |
Pauling scale: 1.65  |
| Thien-lì-nèn |
1st: 906.4 kJ·mol−1  2nd: 1733.3 kJ·mol−1  3rd: 3833 kJ·mol−1  (more)  |
| Ngièn-chṳ́ pan-kang |
empirical: 134 pm  |
| Khiung-ka pan-kang |
122±4 pm  |
| Van der Waals pan-kang |
139 pm  |
| Miscellanea |
| Chîn-thí keu-chho |  ​hexagonal close-packed (hcp) |
| Sâng-suk thin rod |
3850 m·s−1 (at r.t.) (rolled) |
| Ngie̍t-phàng-chong |
30.2 µm·m−1·K−1 (at 25 °C)  |
| Ngie̍t-chhòn-thô-li̍t |
116 W·m−1·K−1  |
| Thien-chú-li̍t |
59.0 nΩ·m (at 20 °C)  |
| Chhṳ̀-sin |
diamagnetic  |
| Young's modulus |
108 GPa  |
| Shear modulus |
43 GPa  |
| Bulk modulus |
70 GPa  |
| Poisson ratio |
0.25  |
| Mohs hardness |
2.5  |
| Brinell hardness |
327–412 MPa  |
| CAS Registry Number |
7440-66-6  |
| Le̍k-sú |
| Fat-hien |
Indian metallurgists (before 1000 BCE) |
| First isolation |
Andreas Sigismund Marggraf (1746) |
| Recognized as a unique metal by |
Rasaratna Samuccaya (800) |
| Chui vún-thin ke thùng-vi-su |
|
Chú vùn-chông: Â-yèn ke thùng-vi-su |
|

| iso | NA | half-life | DM | DE (MeV) | DP |
| --- | --- | --- | --- | --- | --- |
| 64Zn | 48.6% | >2.3×1018 y | (β+β+) | 1.096 | 64Ni |
| 65Zn | syn | 243.8 d | ε | 1.3519 | 65Cu |
| γ | 1.1155 | – |
| 66Zn | 27.9% | 66Zn is stable with 36 neutrons |
| 67Zn | 4.1% | 67Zn is stable with 37 neutrons |
| 68Zn | 18.8% | 68Zn is stable with 38 neutrons |
| 69Zn | syn | 56 min | β− | 0.906 | 69Ga |
| 69mZn | syn | 13.76 h | β− | 0.906 | 69Ga |
| 70Zn | 0.6% | >1.3×1016 y | (β−β−) | 0.998 | 70Ge |
| 71Zn | syn | 2.4 min | β− | 2.82 | 71Ga |
| 71mZn | syn | 3.97 d | β− | 2.82 | 71Ga |
| 72Zn | syn | 46.5 h | β− | 0.458 | 72Ga |

 |
|
Decay modes in parentheses are predicted, but have not yet been observed |

**Â-yèn** (亞鉛), fe̍t-chá ham-cho **sîn** (鋅), he yit-chúng fa-ho̍k ngièn-su, fa-ho̍k fù-ho vì **Zn**, ngièn-chṳ́ su-muk he **30**, chhai Ngièn-su chû-khì-péu chûng thi sâm-sṳ̍p vi.

## Chhâm-kháu chṳ̂-liau