Silver, Ag General properties Appearance lustrous white metal Standard atomic weight (A) 7002107868200000000 ♠ 107.8682 (2) Silver in the periodic table 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 ← silver → cadmium Atomic number (Z) 47 Group group 11 Period period 5 Block d - block Element category transition metal Electron configuration (Kr) 4d 5s Electrons per shell 2, 8, 18, 18, 1 Physical properties Phase at STP solid Melting point 1234.93 K ​ (961.78 ° C, ​ 1763.2 ° F) Boiling point 2435 K ​ (2162 ° C, ​ 3924 ° F) Density (near r.t.) 10.49 g / cm when liquid (at m.p.) 9.320 g / cm Heat of fusion 11.28 kJ / mol Heat of vaporisation 254 kJ / mol Molar heat capacity 25.350 J / (mol K) Vapour pressure P (Pa) 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 ​ (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 Spectral lines of silver Other properties Crystal structure ​ face - centred cubic (fcc) Speed of sound thin rod 2680 m / s (at r.t.) Thermal expansion 18.9 μm / (m K) (at 25 ° C) Thermal conductivity 429 W / (m K) Thermal diffusivity 174 mm / s (at 300 K) Electrical resistivity 15.87 nΩ m (at 20 ° C) Magnetic ordering diamagnetic Magnetic susceptibility − 19.5 10 cm / 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 Isotope Abundance Half - life (t) Decay mode Product Ag syn 41.2 d ε Pd γ -- Ag syn 8.28 d ε Pd γ -- Ag 51.839 % stable Ag syn 418 y ε Pd IT Ag γ -- Ag 48.161 % stable Ag syn 7.45 d β Cd γ -- view talk references
what state of matter is silver commonly found in
solid