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کينډۍ:Infobox gold

د ويکيپېډيا، وړیا پوهنغونډ له خوا
Gold,  79Au
عمومي خواص
Pronunciation /ˈɡld/
GOHLD
Appearancemetallic yellow
Gold په دوراني جدول کې
Hydrogen (diatomic nonmetal)
Helium (noble gas)
Lithium (alkali metal)
Beryllium (alkaline earth metal)
Boron (metalloid)
Carbon (polyatomic nonmetal)
Nitrogen (diatomic nonmetal)
Oxygen (diatomic nonmetal)
Fluorine (diatomic nonmetal)
Neon (noble gas)
Sodium (alkali metal)
Magnesium (alkaline earth metal)
Aluminium (post-transition metal)
Silicon (metalloid)
Phosphorus (polyatomic nonmetal)
Sulfur (polyatomic nonmetal)
Chlorine (diatomic nonmetal)
Argon (noble gas)
Potassium (alkali metal)
Calcium (alkaline earth metal)
Scandium (transition metal)
Titanium (transition metal)
Vanadium (transition metal)
Chromium (transition metal)
Manganese (transition metal)
Iron (transition metal)
Cobalt (transition metal)
Nickel (transition metal)
Copper (transition metal)
Zinc (transition metal)
Gallium (post-transition metal)
Germanium (metalloid)
Arsenic (metalloid)
Selenium (polyatomic nonmetal)
Bromine (diatomic nonmetal)
Krypton (noble gas)
Rubidium (alkali metal)
Strontium (alkaline earth metal)
Yttrium (transition metal)
Zirconium (transition metal)
Niobium (transition metal)
Molybdenum (transition metal)
Technetium (transition metal)
Ruthenium (transition metal)
Rhodium (transition metal)
Palladium (transition metal)
Silver (transition metal)
Cadmium (transition metal)
Indium (post-transition metal)
Tin (post-transition metal)
Antimony (metalloid)
Tellurium (metalloid)
Iodine (diatomic nonmetal)
Xenon (noble gas)
Caesium (alkali metal)
Barium (alkaline earth metal)
Lanthanum (lanthanide)
Cerium (lanthanide)
Praseodymium (lanthanide)
Neodymium (lanthanide)
Promethium (lanthanide)
Samarium (lanthanide)
Europium (lanthanide)
Gadolinium (lanthanide)
Terbium (lanthanide)
Dysprosium (lanthanide)
Holmium (lanthanide)
Erbium (lanthanide)
Thulium (lanthanide)
Ytterbium (lanthanide)
Lutetium (lanthanide)
Hafnium (transition metal)
Tantalum (transition metal)
Tungsten (transition metal)
Rhenium (transition metal)
Osmium (transition metal)
Iridium (transition metal)
Platinum (transition metal)
Gold (transition metal)
Mercury (transition metal)
Thallium (post-transition metal)
Lead (post-transition metal)
Bismuth (post-transition metal)
Polonium (post-transition metal)
Astatine (metalloid)
Radon (noble gas)
Francium (alkali metal)
Radium (alkaline earth metal)
Actinium (actinide)
Thorium (actinide)
Protactinium (actinide)
Uranium (actinide)
Neptunium (actinide)
Plutonium (actinide)
Americium (actinide)
Curium (actinide)
Berkelium (actinide)
Californium (actinide)
Einsteinium (actinide)
Fermium (actinide)
Mendelevium (actinide)
Nobelium (actinide)
Lawrencium (actinide)
Rutherfordium (transition metal)
Dubnium (transition metal)
Seaborgium (transition metal)
Bohrium (transition metal)
Hassium (transition metal)
Meitnerium (unknown chemical properties)
Darmstadtium (unknown chemical properties)
Roentgenium (unknown chemical properties)
Copernicium (transition metal)
Nihonium (unknown chemical properties)
Flerovium (unknown chemical properties)
Moscovium (unknown chemical properties)
Livermorium (unknown chemical properties)
Tennessine (unknown chemical properties)
Oganesson (unknown chemical properties)
Ag

Au

Rg
platinumgoldmercury
اټومي شمیره (Z)79
گروپ, پیریودgroup 11, period 6
بلاکd-block
Element category  transition metal
معياري اټومي وزن (Ar)کينډۍ:Val[۱][۲]
Electron configuration[Xe] 4f14 5d10 6s1
Electrons per shell
2, 8, 18, 32, 18, 1
فزیکي خواص
حالت (at STP)جامد
دويلې کيدو ټکى1337.33 K ​(1064.18 °C, ​1947.52 °F)
يشنا ټکی3243 K ​(2970 °C, ​5378 °F)
Density near r.t.19.30 g/cm3
when liquid, at m.p.17.31 g/cm3
Heat of fusion12.55 kJ/mol
Heat of vaporization342 kJ/mol
Molar heat capacity25.418 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 1646 1814 2021 2281 2620 3078
اټومي خواص
Oxidation states5, 3, 2, 1, −1, −2, −3 ​(an amphoteric oxide)
ElectronegativityPauling scale: 2.54
Ionization energies
  • 1st: 890.1 kJ/mol
  • 2nd: 1980 kJ/mol
Atomic radiusempirical: 144 pm
Covalent radius136±6 pm
Van der Waals radius166 pm
Miscellanea
Crystal structureface-centered cubic (fcc)
Face centered cubic crystal structure for gold
Face centered cubic crystal structure for gold
Speed of sound thin rod2030 m/s (at r.t.)
Thermal expansion14.2 µm/(m·K) (at 25 °C)
د تودوخې تېرېدنه318 W/(m·K)
Electrical resistivity22.14 nΩ·m (at 20 °C)
Magnetic orderingdiamagnetic[۳]
Magnetic susceptibility (χmol)−28.0·10−6 cm3/mol (at 296 K)[۴]
Tensile strength120 MPa
Young's modulus79 GPa
Shear modulus27 GPa
Bulk modulus180 GPa[۵]
Poisson ratio0.4
Mohs hardness2.5
Vickers hardness188–216 MPa
Brinell hardness188–245 MPa
CAS Number7440-57-5
History
Namingfrom Latin Script error: The function "Lang" does not exist., meaning gold
DiscoveryIn the Middle East (before 6000 BCE)
Main isotopes of gold
آيسو­ټوپ Abun­dance نیم ژوند (t1/2) Decay mode Pro­duct
195Au syn 186.10 d ε 195Pt

کينډۍ:Infobox element/isotopes decay2

197Au 100% stable
198Au syn 2.69517 d β 198Hg
199Au syn 3.169 d β 199Hg
| references | in Wikidata

Element navigation

goldPT
Pt ←
 
→ Hg

سرچينې

  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. "Standard Atomic Weights 2013". Commission on Isotopic Abundances and Atomic Weights.
  3. 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.
  4. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
  5. Kelly, P.F. (2015). Properties of Materials. CRC Press. p. 355. ISBN 978-1-4822-0624-1.
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