# A-iân

A-iân,  30Zn|  |
| Ki-pún sèng-chit |
| Miâ, hû-hō | A-iân, Zn |
| Eng-bûn | zinc |
| Phian-miâ | pe̍h-iân, sin |
| Gōa-hêng | silver-gray |
| A-iân tī chiu-kî-piáu lāi ê ūi-tì |
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 | – ↑ **Zn** ↓ Cd |
| tâng ← **A-iân** → gallium |

 |

 |
| Goân-chú-hoan | 30 |
| Goân-chú-liōng (±) | 65.38(2)  |
| Goân-sò͘ lūi-pia̍t |   kòe-tō͘ kim-sio̍k alternatively considered a post-transition metal |
| Cho̍k, hun-khu | 12 cho̍k, d khu  |
| Chiu-kî | tē 4 chiu-kî  |
| Tiān-chú pâi-lia̍t | [Ar] 3d10 4s2  |
| per shell | 2, 8, 18, 2 |
| Bu̍t-lí sèng-chit |
| Siòng | kò͘-thé |
| Iûⁿ-tiám | 692.68 K ​(419.53 °C, ​787.15 °F)  |
| Hut-tiám | 1180 K ​(907 °C, ​1665 °F)  |
| Bi̍t-tō͘  (sek-un) | 7.14 g·cm−3 |
| 6.57 g·cm−3  |
| Iûⁿ-hoà-jia̍t | 7.32 kJ·mol−1  |
| Cheng-hoat-jia̍t | 115 kJ·mol−1  |
| Jia̍t-iông-liōng | 25.470 J·mol−1·K−1  |
| **cheng-khì-ap**

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

 |
| Goân-chú sèng-chit |
| Sng-hòa-sò͘ | -2, 0, +1, **+2** ​(an amphoteric oxide) |
| Tiān-hū-tō͘ | Pauling scale: 1.65  |
| Tiān-lī-lêng | 1st: 906.4 kJ·mol−1  2nd: 1733.3 kJ·mol−1  3rd: 3833 kJ·mol−1  (more)  |
| Goân-chú pòaⁿ-kèng | empirical: 134 pm  |
| Kiōng-kè pòaⁿ-kèng | 122±4 pm  |
| Van der Waals pòaⁿ-kèng | 139 pm  |
| Cha̍p-lio̍k |
| Chiⁿ-thé kò͘-chō |  ​hexagonal close-packed (hcp) |
| Siaⁿ-sok (sòe kùn-á) | 3850 m·s−1 (at r.t.) (rolled) |
| Jia̍t-phòng-tiòng | 30.2 µm·m−1·K−1 (at 25 °C)  |
| Jia̍t-thoân-tō-lu̍t | 116 W·m−1·K−1  |
| Tiān-chó͘-lu̍t | 59.0 nΩ·m (at 20 °C)  |
| Chû-sèng | diamagnetic  |
| Young hē-sò͘ | 108 GPa  |
| Shear hē-sò͘ | 43 GPa  |
| Bulk hē-sò͘ | 70 GPa  |
| Poisson pí | 0.25  |
| Mohs ngē-tō͘ | 2.5  |
| Brinell ngē-tō͘ | 327–412 MPa  |
| CAS teng-kì pian-hō | 7440-66-6  |
| Le̍k-sú |
| Hoat-hiān | Indian metallurgists (before 1000 BCE) |
| Siōng chá hû-lî | Andreas Sigismund Marggraf (1746) |
| Recognized as a unique metal by | Rasaratna Samuccaya (800) |
| Chòe ún-tēng ê tông-ūi-sò͘ |
| Chú bûn-chiong: A-iân ê tông-ūi-sò͘ |
|

| 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 |

**A-iân** (亞鉛), he̍k-chiá **pe̍h-iân** (白鉛), kì-hō **Zn**, sī tī chiu-kî-pió lāi-té ê chi̍t chióng hoà-ha̍k goân-sò͘, goân-chú-hoan 30. Zn sī chhián phú-á-sek ê koè-tō͘ kim-sio̍k. Zn pâi tī thih, a-lú-mih, tâng aū-piah, sī tē 4 chia̍p khoàⁿ--tio̍h ê kim-sio̍k.

## Chham-khó