آرسنیک

ویکی‌پدیا، آچیق بیلیک‌لیک‌دن
پرش به ناوبری پرش به جستجو
Arsenic,  33As
Arsen 1a.jpg
General properties
Pronunciation/ˈɑrs[invalid input: 'ᵻ']nɪk/, also /ɑrˈsɛnɪk/ when attributive
AR-sə-nik, ar-SEN-ik
Allotropesgrey (most common), yellow, black
Appearancemetallic grey
Arsenic in the periodic table
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)
P

As

Sb
germaniumarsenicselenium
Atomic number (Z)33
Group, periodgroup 15 (pnictogens), period 4
Blockp-block
Element category  metalloid
Standard atomic weight (Ar)74.921595(6)[۱]
Electron configuration[Ar] 3d10 4s2 4p3
Electrons per shell
2, 8, 18, 5
Physical properties
Phasesolid
Sublimation point887 K ​(615 °C, ​1137 °F)
Density near r.t.5.727 g/cm3
when liquid, at m.p.5.22 g/cm3
Triple point1090 K, ​3628 kPa[۲]
Critical point1673 K, ? MPa
Heat of fusiongrey: 24.44 kJ/mol
Heat of vaporization34.76 kJ/mol (?)
Molar heat capacity24.64 J/(mol·K)
Vapor pressure
P (Pa) 1 10 100 1 k 10 k 100 k
at T (K) 553 596 646 706 781 874
Atomic properties
Oxidation states5, 4, 3, 2, 1,[۳] −1, −2, −3 ​(a mildly acidic oxide)
ElectronegativityPauling scale: 2.18
Ionization energies1st: 947.0 kJ/mol
2nd: 1798 kJ/mol
3rd: 2735 kJ/mol
(more)
Atomic radiusempirical: 119 pm
Covalent radius119±4 pm
Van der Waals radius185 pm
Miscellanea
Crystal structurerhombohedral
Rhombohedral crystal structure for arsenic
Thermal expansion5.6 µm/(m·K)[۴] (at r.t.)
Thermal conductivity50.2 W/(m·K)
Electrical resistivity333 nΩ·m (at 20 °C)
Magnetic orderingdiamagnetic[۵]
Magnetic susceptibility (χmol)−5.5·10−6 cm3/mol[۶]
Young's modulus8 GPa
Bulk modulus22 GPa
Mohs hardness3.5
Brinell hardness1440 MPa
CAS Number7440-38-2
تاریخی
Discoveryca. 800
Main isotopes of arsenic
Iso­tope Abun­dance Half-life Decay mode Pro­duct
73As syn 80.3 d ε 73Ge
γ
74As syn 17.8 d ε 74Ge
β+ 74Ge
γ
β 74Se
75As 100% is stable
| references | in Wikidata

آرسنیک (اینگیلیسجه: Arsenic) آتوم سایی‌سی ۳۳ اولان بیر شیمیایی عنصوردور.

قایناق

  1. (2016) «Atomic weights of the elements 2013 (IUPAC Technical Report)». Pure Appl. Chem. 88 (3): 265-91. DOI:10.1515/pac-2015-0305.
  2. Gokcen, N. A (1989). «The As (arsenic) system». Bull. Alloy Phase Diagrams 10: 11–22. DOI:10.1007/BF02882166.
  3. (2004) «Stabilized Arsenic(I) Iodide: A Ready Source of Arsenic Iodide Fragments and a Useful Reagent for the Generation of Clusters». Inorganic Chemistry 43 (19): 5981–6. DOI:10.1021/ic049281s. PMID 15360247.
  4. Cverna, Fran (2002). ASM Ready Reference: Thermal properties of metals. ASM International. pp. 8–. ISBN 978-0-87170-768-0. pdf.
  5. Lide, David R., ed. (2000). "Magnetic susceptibility of the elements and inorganic compounds". Handbook of Chemistry and Physics (PDF) (81 ed.). CRC press. ISBN 0849304814.
  6. Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.