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|
Silver (Argentum)
Chemical Properties & Compounds
| Symbol | Atomic Number | Atomic Weight | Melting Point | Boiling Point | Phase | Density | Classification |
| Ag | 47 | 107.8682 | 961.78 °C | 2162 °C | Solid | 10.49 g/cm3 | Noble Metal  |
|
|
|
| General |
| Name, Symbol, Number |
silver, Ag, 47 |
| Chemical series |
transition metals |
| Group, Period, Block |
11, 5, d |
| Appearance |
lustrous white metal
 |
| Standard atomic weight |
107.8682(2) g·mol−1 |
| Electron configuration |
[Kr] 4d10 5s1 |
| Electrons per shell |
2, 8, 18, 18, 1 |
| Physical properties |
| Color |
silver |
| Phase |
solid |
| Density (near r.t.) |
10.49 g·cm−3 |
| Liquid density at m.p. |
9.320 g·cm−3 |
| Melting point |
1234.93 K
(961.78 °C, 1763.2 °F) |
| Boiling point |
2435 K
(2162 °C, 3924 °F) |
| Heat of fusion |
11.28 kJ·mol−1 |
| Heat of vaporization |
250.58 kJ·mol−1 |
| Heat capacity |
(25 °C) 25.350 J·mol−1·K−1 |
Vapor pressure
| P(Pa) |
1 |
10 |
100 |
1 k |
10 k |
100 k |
| at T(K) |
1283 |
1413 |
1575 |
1782 |
2055 |
2433 |
|
| Atomic properties |
| Crystal structure |
face-centered cubic |
| Oxidation states |
1
(amphoteric oxide) |
| Electronegativity |
1.93 (scale Pauling) |
| Ionization energies |
1st: 731.0 kJ/mol |
| 2nd: 2070 kJ/mol |
| 3rd: 3361 kJ/mol |
| Atomic radius |
160 pm |
| Atomic radius (calc.) |
165 pm |
| Covalent radius |
153 pm |
| Van der Waals radius |
172 pm |
| Miscellaneous |
| Magnetic ordering |
diamagnetic |
| Electrical resistivity |
(20 °C) 15.87 n Ω·m |
| Thermal conductivity |
(300 K) 429 W·m−1·K−1 |
| Thermal diffusivity |
(300 K) 174 mm²/s |
| Thermal expansion |
(25 °C) 18.9 µm·m−1·K−1 |
| Speed of sound (thin rod) |
(r.t.) 2680 m·s−1 |
| Young's modulus |
83 GPa |
| Shear modulus |
30 GPa |
| Bulk modulus |
100 GPa |
| Poisson ratio |
0.37 |
| Mohs hardness |
2.5 |
| Vickers hardness |
251 MPa |
| Brinell hardness |
24.5 MPa |
| CAS registry number |
7440-22-4 |
| Selected isotopes |
|
|
| References |
|
Silver Compounds
|
Source: Wikipedia article Silver
|
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Chemistry Quick Facts
