# Fàdákà

Fàdákà, 47Ag|  |
| Fàdákà |
| Ìhànsójú | lustrous white metal |
| Ìwúwo átọ̀mù *A*r, std(Ag) | 107.8682(2) |
| Fàdákà ní orí tábìlì àyè |
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|  |  |  |
| --- | --- | --- |
| Hydrogen |  | Helium |
| Lithium | Beryllium |  | Boron | Carbon | Nitrogen | Oxygen | Fluorine | Neon |
| Sodium | Magnesium |  | Aluminium | Silicon | Phosphorus | Sulfur | Chlorine | Argon |
| Potassium | Calcium | Scandium |  | Titanium | Vanadium | Chromium | Manganese | Iron | Cobalt | Nickel | Copper | Zinc | Gallium | Germanium | Arsenic | Selenium | Bromine | Krypton |
| Rubidium | Strontium | Yttrium |  |  | Zirconium | Niobium | Molybdenum | Technetium | Ruthenium | Rhodium | Palladium | Silver | Cadmium | Indium | Tin | Antimony | Tellurium | Iodine | Xenon |
| Caesium | Barium | Lanthanum | Cerium | Praseodymium | Neodymium | Promethium | Samarium | Europium | Gadolinium | Terbium | Dysprosium | Holmium | Erbium | Thulium | Ytterbium | Lutetium | Hafnium | Tantalum | Tungsten | Rhenium | Osmium | Iridium | Platinum | Gold | Mercury (element) | Thallium | Lead | Bismuth | Polonium | Astatine | Radon |
| Francium | Radium | Actinium | Thorium | Protactinium | Uranium | Neptunium | Plutonium | Americium | Curium | Berkelium | Californium | Einsteinium | Fermium | Mendelevium | Nobelium | Lawrencium | Rutherfordium | Dubnium | Seaborgium | Bohrium | Hassium | Meitnerium | Darmstadtium | Roentgenium | Copernicium | Nihonium | Flerovium | Moscovium | Livermorium | Tennessine | Oganesson |

 | Cu ↑ **Ag** ↓ Au |
| palladium ← **fàdákà** → cadmium |

 |

 |
| Nọ́mbà átọ̀mù (*Z*) | 47 |
| Ẹgbẹ́ | group 11 |
| Àyè | àyè 5  |
| Àdìpọ̀ | Àdìpọ̀-d  |
| Ẹ̀ka ẹ́límẹ́ntì |   Transition metal |
| Ìtò ẹ̀lẹ́ktrọ́nù | [Kr] 4d10 5s1 |
| Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan | 2, 8, 18, 18, 1 |
| Àwọn ohun ìní ara |
| Ìfarahàn at STP | solid |
| Ìgbà ìyọ́ | 1234.93 K ​(961.78 °C, ​1763.2 °F)  |
| Ígbà ìhó | 2435 K ​(2162 °C, ​3924 °F)  |
| Kíki (near r.t.) | 10.49 g/cm3 |
| when liquid (at m.p.) | 9.320 g/cm3  |
| Heat of fusion | 11.28 kJ/mol  |
| Heat of  | 250.58 kJ/mol  |
| Molar heat capacity | 25.350 J/(mol·K)  |
| **pressure**

| *P* (Pa) | 1 | 10 | 100 | 1 k | 10 k | 100 k |
| --- | --- | --- | --- | --- | --- | --- |
| at *T* (K) | 1283 | 1413 | 1575 | 1782 | 2055 | 2433 |

 |
| Atomic properties |
| Oxidation states | −2, −1, **+1**, +2, +3 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment |
| Electronegativity | Pauling scale: 1.93  |
| Atomic radius | empirical: 144 pm  |
| Covalent radius | 145±5 pm  |
| Van der Waals radius | 172 pm  |
| Color lines in a spectral range**Spectral lines of fàdákà** |
| Other properties |
| Natural occurrence | primordial |
| Crystal structure |  ​(fcc) |
| Thermal expansion | 18.9 µm/(m·K) (at 25 °C)  |
| Thermal conductivity | 429 W/(m·K)  |
| Thermal diffusivity | 174 mm2/s (at 300 K)  |
| Electrical resistivity | 15.87 n Ω·m (at 20 °C)  |
| Magnetic ordering | diamagnetic  |
| 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 Number | 7440-22-4  |
| Main isotopes of fàdákà |
|

| Iso­tope | Abun­dance | Half-life (*t*1/2) | Decay mode | Pro­duct |
| --- | --- | --- | --- | --- |
| 105Ag | syn | 41.2 d | ε | - | 105Pd |
| γ | 0.344, 0.280, 0.644, 0.443 | - |
| 106mAg | syn | 8.28 d | ε | - | 106Pd |
| γ | 0.511, 0.717, 1.045, 0.450 | - |
| 107Ag | 51.839% | 107Ag is stable with 60 neutrons |
| 108mAg | syn | 418 y | ε | - | 108Pd |
| IT | 0.109 | 108Ag |
| γ | 0.433, 0.614, 0.722 | - |
| 109Ag | 48.161% | 109Ag is stable with 62 neutrons |
| 111Ag | syn | 7.45 d | β− | 1.036, 0.694 | 111Cd |
| γ | 0.342 | - |

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|

awon ife fadaka
**Fàdákà** je apilese kemika onide to ni ami-idamo kemika **Ag** (Látìnì: *argentum*) ati nomba atomu 47.

Fadaka je iru ti ohun didan, o tàn.

## Itokasi