سپينزر

Silver, ₄₇Ag
عمومي خواص
Pronunciation	/ˈsɪlvər/ ; SIL-vər
Appearance	lustrous white metal
Silver په دوراني جدول کې
palladium ← silver → cadmium	‍
اټومي شمیره (Z)	47
گروپ, پیریود	group 11, period 5
بلاک	d-block
Element category	transition metal
معياري اټومي وزن (Ar)	کينډۍ:Val
Electron configuration	[Kr] 4d10 5s1
Electrons per shell	2, 8, 18, 18, 1
فزیکي خواص
حالت (at STP)	جامد
دويلې کيدو ټکى	1234.93 K (961.78 °C, 1763.2 °F)
يشنا ټکی	2435 K (2162 °C, 3924 °F)
Density 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 vaporisation	254 kJ/mol
Molar heat capacity	25.350 J/(mol·K)
اټومي خواص
Oxidation states	−2, −1, 1, 2, 3 (an amphoteric oxide)
Electronegativity	Pauling scale: 1.93
Ionisation energies	1st: 731.0 kJ/mol ; 2nd: 2070 kJ/mol ; 3rd: 3361 kJ/mol ; ;
Atomic radius	empirical: 144 pm
Covalent radius	145±5 pm
Van der Waals radius	172 pm
Miscellanea
Crystal structure	face-centred cubic (fcc) Face-centered cubic crystal structure for silver
Speed of sound thin rod	2680 m/s (at r.t.)
Thermal expansion	18.9 µm/(m·K) (at 25 °C)
د تودوخې تېرېدنه	429 W/(m·K)
Thermal diffusivity	174 mm2/s (at 300 K)
Electrical resistivity	15.87 nΩ·m (at 20 °C)
Magnetic ordering	diamagnetic
Magnetic susceptibility (χmol)	−19.5·10−6 cm3/mol (296 K)
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	206–250 MPa
CAS Number	7440-22-4
History
Discovery	before 5000 BC
Main isotopes of silver
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سپينزر (په انگرېزي: Silver) له کیمیاوي عناصرو څخه یو دی چې په تناوبي جدول کې د Ag سمبول او ۴v اتمي شمېرې په وسیله ښودل شوی دی.

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د استعمال ځایونه

سرچينې

↑ Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265–91. doi:10.1515/pac-2015-0305. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)
↑ Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

دا ليکنه نابشپړه ده، تاسې ددې ليکنې په بشپړولو کې د ويکيپېډيا سره مرسته کولای شئ.

[CIAAW2016-1] Meija, J.; Coplen, T. B. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure Appl. Chem. 88 (3): 265–91. doi:10.1515/pac-2015-0305. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)

[2] Lide, D. R., ed. (2005). "Magnetic susceptibility of the elements and inorganic compounds". CRC Handbook of Chemistry and Physics (PDF) (86th ed.). Boca Raton (FL): CRC Press. ISBN 0-8493-0486-5.

[3] Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.

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