Fàdákà je apilese kemika onide to ni ami-idamo kemika Ag (Látìnì : argentum ) ati nomba atomu 47.
Quick Facts Ìhànsójú, Ìwúwo átọ̀mù Ar, std(Ag) ...
Fàdákà, 47 Ag Fàdákà Ìhànsójú lustrous white metal Ìwúwo átọ̀mù A r, 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 range Spectral lines of fàdákàOther 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
Iso tope
Abun dance
Half-life (t 1/2 )
Decay mode
Pro duct
105 Ag
syn
41.2 d
ε
-
105 Pd
γ
0.344, 0.280, 0.644, 0.443
-
106m Ag
syn
8.28 d
ε
-
106 Pd
γ
0.511, 0.717, 1.045, 0.450
-
107 Ag
51.839%
107 Ag is stable with 60 neutrons
108m Ag
syn
418 y
ε
-
108 Pd
IT
0.109
108 Ag
γ
0.433, 0.614, 0.722
-
109 Ag
48.161%
109 Ag is stable with 62 neutrons
111 Ag
syn
7.45 d
β−
1.036, 0.694
111 Cd
γ
0.342
-
Àdàkọ:Category-inline | references
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Meija, Juris; Coplen, Tyler B.; Berglund, Michael; Brand, Willi A.; De Bièvre, Paul; Gröning, Manfred; Holden, Norman E.; Irrgeher, Johanna et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry 88 (3): 265–91. doi :10.1515/pac-2015-0305 .