Zinc
Lát'ọwọ́ Wikipedia, ìwé ìmọ̀ ọ̀fẹ́
| Zinc |
|
30Zn
|
|
|
| Ìhànsójú |
silvery gray
 |
| Àwọn ìdámọ́ wíwọ́pọ̀ |
| Orúkọ, àmì-ìdámọ́, nọ́mbà |
zinc, Zn, 30 |
| Ẹ̀ka ẹ́límẹ̀nti |
transition metal
Alternatively considered a post-transition metal |
| Ẹgbẹ́, àsìkò, àdìpò |
12, 4, d |
| Ìwúwo átọ́mù |
65.38(4) |
| Ìtòléra ẹ̀lẹ́ktrónì |
[Ar] 3d10 4s2
2, 8, 18, 2 |
| Physical properties |
| Phase |
solid |
| Density (near r.t.) |
7.14 g·cm−3 |
| Liquid density at m.p. |
6.57 g·cm−3 |
| Melting point |
692.68 K, 419.53 °C, 787.15 °F |
| Boiling point |
1180 K, 907 °C, 1665 °F |
| Heat of fusion |
7.32 kJ·mol−1 |
| Heat of vaporization |
123.6 kJ·mol−1 |
| Molar heat capacity |
25.470 J·mol−1·K−1 |
| Vapor pressure |
| P (Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T (K) |
610 |
670 |
750 |
852 |
990 |
1179 |
|
| Atomic properties |
| Oxidation states |
+2, +1, 0
(amphoteric oxide) |
| Electronegativity |
1.65 (Pauling scale) |
Ionization energies
(more) |
1st: 906.4 kJ·mol−1 |
| 2nd: 1733.3 kJ·mol−1 |
| 3rd: 3833 kJ·mol−1 |
| Atomic radius |
134 pm |
| Covalent radius |
122±4 pm |
| Van der Waals radius |
139 pm |
| Miscellanea |
| Crystal structure |
hexagonal
|
| Magnetic ordering |
diamagnetic |
| Electrical resistivity |
(20 °C) 59.0 nΩ·m |
| Thermal conductivity |
116 W·m−1·K−1 |
| Thermal expansion |
(25 °C) 30.2 µm·m−1·K−1 |
| Speed of sound (thin rod) |
(r.t.) (rolled) 3850 m·s−1 |
| Young's modulus |
108 GPa |
| Shear modulus |
43 GPa |
| Bulk modulus |
70 GPa |
| Poisson ratio |
0.25 |
| Mohs hardness |
2.5 |
| Brinell hardness |
412 MPa |
| CAS registry number |
7440-66-6 |
| Àwọn ísótòpù dídúró jùlọ |
| Main article: Àwọn ísótòpù zinc |
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· r |
