# زینک

Zinc,  30Zn|  |
| General properties |
| Appearance | silver-gray |
|  |
| Zinc in the periodic table |
|

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|

|  |  |  |
| --- | --- | --- |
|  |  |  |
|  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

 | – ↑ Zn ↓ Cd |
| پاخیر ← zinc → قالیوم | ‍ |

 |

 |
| Atomic number (*Z*) | 30 |
| Group, period | group n/a, period {{{period}}}  |
| Block | [[{{{block}}}-block]]  |
| Electron configuration | {{{electron configuration}}}  |
| Electrons per shell | 2, 8, 18, 2 |
| Physical properties |
| Melting point | 692.68 K ​(419.53 °C, ​787.15 °F)  |
| Boiling point | 1180 K ​(907 °C, ​1665 °F)  |
| Density near r.t. | 7.14 g/cm3 |
| when liquid, at m.p. | 6.57 g/cm3  |
| Heat of fusion | 7.32 kJ/mol  |
| Heat of vaporization | 115 kJ/mol  |
| Molar heat capacity | 25.470 J/(mol·K)  |
| **Vapor pressure**

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

 |
| Atomic properties |
| Electronegativity | Pauling scale: 1.65  |
| Ionization energies | 1st: 906.4 kJ/mol  2nd: 1733.3 kJ/mol  3rd: 3833 kJ/mol  (more)  |
| Atomic radius | empirical: 134 pm  |
| Covalent radius | 122±4 pm  |
| Van der Waals radius | 139 pm  |
| Miscellanea |
| Crystal structure |  ​hexagonal close-packed (hcp) |
| Speed of sound thin rod | 3850 m/s (at r.t.) (rolled) |
| Thermal expansion | 30.2 µm/(m·K) (at 25 °C)  |
| Thermal conductivity | 116 W/(m·K)  |
| Electrical resistivity | 59.0 nΩ·m (at 20 °C)  |
| Magnetic ordering | diamagnetic  |
| Magnetic susceptibility (*χ*mol) | −11.4×10−6 cm3/mol (298 K) |
| 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 Number | 7440-66-6  |
| تاریخی |
| Discovery | Indian metallurgists (before 1000 BCE) |
| First isolation | آندرئاس زیقیسموند مارقراف (1746) |
| Recognized as a unique metal by | Rasaratna Samuccaya (1300) |
| Main isotopes of zinc |
|

| Iso­tope | Abun­dance | Half-life | Decay mode | Pro­duct |
| --- | --- | --- | --- | --- |
| 64Zn | 49.2% | is stable |
| 65Zn | syn | 244 d | ε | 65Cu |
| قاما ایشیقی | – |
| 66Zn | 27.7% | is stable |
| 67Zn | 4.0% | is stable |
| 68Zn | 18.5% | is stable |
| 69Zn | syn | 56 min | بتا پوزولوشو | 69Ga |
| 69mZn | syn | 13.8 h | β− | 69Ga |
| 70Zn | 0.6% | is stable |
| 71Zn | syn | 2.4 min | β− | 71Ga |
| 71mZn | syn | 4 d | β− | 71Ga |
| 72Zn | syn | 46.5 h | β− | 72Ga |

 |
|

**زینک** یا **رؤه** و یا **رؤی** یا دا **توتيا** (اینگیلیسجه: Zincum) علامتی Zn واتومی سایی 30 اولان آق بویاقدا گؤی کیمی فلز و شیمیایی عونصوردور.

## قایناقلار