آرسنیک

ویکی‌پدیا، آچیق بیلیک‌لیک‌دن
پرش به ناوبری پرش به جستجو
Arsenic,  33As
Arsen 1a.jpg
General properties
Pronunciation /ˈɑrs[unsupported input]nɪk/, also /ɑrˈsɛnɪk/ when attributive
AR-sə-nik, ar-SEN-ik
Allotropes grey (most common), yellow, black
Appearance metallic 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, period group 15 (pnictogens), period 4
Block p-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
Phase solid
Sublimation point 887 K ​(615 °C, ​1137 °F)
Density near r.t. 5.727 g/cm3
when liquid, at m.p. 5.22 g/cm3
Triple point 1090 K, ​3628 kPa[۲]
Critical point 1673 K, ? MPa
Heat of fusion grey: 24.44 kJ/mol
Heat of vaporization 34.76 kJ/mol (?)
Molar heat capacity 24.64 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 states 5, 4, 3, 2, 1,[۳] −1, −2, −3 ​(a mildly acidic oxide)
Electronegativity Pauling scale: 2.18
Ionization energies 1st: 947.0 kJ/mol
2nd: 1798 kJ/mol
3rd: 2735 kJ/mol
(more)
Atomic radius empirical: 119 pm
Covalent radius 119±4 pm
Van der Waals radius 185 pm
Miscellanea
Crystal structurerhombohedral
Rhombohedral crystal structure for arsenic
Thermal expansion 5.6 µm/(m·K)[۴] (at r.t.)
Thermal conductivity 50.2 W/(m·K)
Electrical resistivity 333 nΩ·m (at 20 °C)
Magnetic ordering diamagnetic[۵]
Magnetic susceptibility (χmol) −5.5·10−6 cm3/mol[۶]
Young's modulus 8 GPa
Bulk modulus 22 GPa
Mohs hardness 3.5
Brinell hardness 1440 MPa
CAS Number 7440-38-2
تاریخی
Discovery ca. 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 (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.