Fàdákà je apilese kemika onide to ni ami-idamo kemika Ag (Látìnì: argentum) ati nomba atomu 47.
Fàdákà, 47Ag |
| Fàdákà |
|---|
| Ìhànsójú | lustrous white metal |
|---|
| Ìwúwo átọ̀mù Ar, std(Ag) | 107.8682(2)[1] |
|---|
| Fàdákà ní orí tábìlì àyè |
|---|
|
| 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 rangeSpectral 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 (t1/2) | 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 | - |
|
Àdàkọ:Category-inline
| references |
Itokasi
