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Arseniko

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(Idinirekta mula saArsenic)
Arsenic, 33As
Arsenic
Bigkas
Allotropeskulay-abo (pinakakaraniwan), dilaw, itim (tingnan ang mga alotropo ng arseniko)
Appearancemetallic grey
Standard atomic weightAr°(As)
  • 74.921595±0.000006
  • 74.922±0.001 (pinaikli)[1][2]
Arsenic satalahanayang peryodiko
HydrogenHelium
LithiumBerylliumBoronCarbonNitrogenOxygenFluorineNeon
SodiumMagnesiumAluminiumSiliconPhosphorusSulfurChlorineArgon
PotassiumCalciumScandiumTitaniumVanadiumChromiumManganeseIronCobaltNickelCopperZincGalliumGermaniumArsenicSeleniumBromineKrypton
RubidiumStrontiumYttriumZirconiumNiobiumMolybdenumTechnetiumRutheniumRhodiumPalladiumSilverCadmiumIndiumTinAntimonyTelluriumIodineXenon
CaesiumBariumLanthanumCeriumPraseodymiumNeodymiumPromethiumSamariumEuropiumGadoliniumTerbiumDysprosiumHolmiumErbiumThuliumYtterbiumLutetiumHafniumTantalumTungstenRheniumOsmiumIridiumPlatinumGoldMercury (element)ThalliumLeadBismuthPoloniumAstatineRadon
FranciumRadiumActiniumThoriumProtactiniumUraniumNeptuniumPlutoniumAmericiumCuriumBerkeliumCaliforniumEinsteiniumFermiumMendeleviumNobeliumLawrenciumRutherfordiumDubniumSeaborgiumBohriumHassiumMeitneriumDarmstadtiumRoentgeniumCoperniciumNihoniumFleroviumMoscoviumLivermoriumTennessineOganesson
P
↑
As
↓
Sb
germanium ←arsenic →selenium
Atomikong bilang(Z)33
Group15
Period4
Block  p-block
Electron configuration[Ar] 3d10 4s2 4p3
Electrons per shell2, 8, 18, 5
Physical properties
Phaseat STPsolido
Sublimation point887 K ​(615 °C, ​1137 °F)
Density (at 20° C)grey: 5.782 g/cm3[3]
when liquid (at m.p.)5.22 g/cm3
Triple point1090 K, ​3628 kPa[4]
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)1101001 k10 k100 k
at T (K)553596646706781874
Atomic properties
Oxidation states−3, −2, −1, 0,[5] +1,[6] +2,+3, +4,+5 (isang katamtamang asidikong oksido)
ElectronegativityPauling scale: 2.18
Ionization energies
  • 1st: 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
Color lines in a spectral range
Mga linyang espektral ng arsenic
Other properties
Natural occurrenceprimordiyal
Crystal structuregrey: ​rhombohedral (hR2)
Lattice constants
Rhombohedral crystal structure for grey: arsenic
ar = 413.15 pm
α = 54.133° pmah = 375.99 pm
ch = 1054.58 pm (at 20 °C)[3]
Thermal expansion5.6 µm/(m⋅K)[7] (at r.t.)
Thermal conductivity50.2 W/(m⋅K)
Electrical resistivity333 nΩ⋅m (at 20 °C)
Magnetic orderingdiamagnetic[8]
Molar magnetic susceptibility−5.5×10−6 cm3/mol[9]
Young's modulus8 GPa
Bulk modulus22 GPa
Mohs hardness3.5
Brinell hardness1440 MPa
CAS Number7440-38-2
History
DiscoveryArabic alchemists (before AD 815)
Isotopes of arsenic
Main isotopes[10]Decay
abun­dancehalf-life(t1/2)modepro­duct
73Assynth80.3 dε73Ge
γ–
74Assynth17.8 dε74Ge
β+74Ge
γ–
β−74Se
75As100%stable
Kategorya: Arsenic
| references

Angarseniko oarsenik (Espanyol:arsenico,Ingles:arsenic) ay isang uri ngelementong kimikal atlasongmetaliko. Mayroon itong atomikong bilang na 33, atomikong timbang na 74.992, balensiyang 3 o 5, at sagisag naAs. Natutunaw ang abuhing arseniko sa temperaturang 817 °C (habang nasa 28 na presyong atmosperiko, sagisagatm), sumisingaw (sublima) sa temperaturang 613 °C, at may espesipikong grabidad na 5.73. Mayroon itong tatlong anyongalotropiko, na nasa anyong may kulay na dilaw, itim, at abuhing kristalina. Ginagamit ang arseniko bilanginsektisidyo o pamatay ng pesteng mga kulisap, pamatay ng mapinsalang mga damo, at inihahalo rin sa mgaaloy.[11]

Mga sanggunian

[baguhin |baguhin ang wikitext]
  1. ↑"Standard Atomic Weights: Arsenic" (sa wikang Ingles). CIAAW. 2013.
  2. ↑Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04)."Standard atomic weights of the elements 2021 (IUPAC Technical Report)".Pure and Applied Chemistry (sa wikang Ingles).doi:10.1515/pac-2019-0603.ISSN 1365-3075.
  3. ↑3.03.1Arblaster, John W. (2018).Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International.ISBN 978-1-62708-155-9.
  4. ↑Gokcen, N. A (1989). "The As (arsenic) system".Bull. Alloy Phase Diagrams.10: 11–22.doi:10.1007/BF02882166.
  5. ↑Abraham, Mariham Y.; Wang, Yuzhong; Xie, Yaoming; Wei, Pingrong; Shaefer III, Henry F.; Schleyer, P. von R.; Robinson, Gregory H. (2010). "Carbene Stabilization of Diarsenic: From Hypervalency to Allotropy".Chemistry: A European Journal (sa wikang Ingles).16 (2): 432–5.doi:10.1002/chem.200902840.PMID 19937872.
  6. ↑Ellis, Bobby D.; MacDonald, Charles L. B. (2004). "Stabilized Arsenic(I) Iodide: A Ready Source of Arsenic Iodide Fragments and a Useful Reagent for the Generation of Clusters".Inorganic Chemistry (sa wikang Ingles).43 (19): 5981–6.doi:10.1021/ic049281s.PMID 15360247.
  7. ↑Cverna, Fran (2002).ASM Ready Reference: Thermal properties of metals. ASM International. pp. 8–.ISBN 978-0-87170-768-0.pdf.
  8. ↑Lide, David R., pat. (2000). "Magnetic susceptibility of the elements and inorganic compounds".Handbook of Chemistry and Physics(PDF) (ika-81 (na) labas). CRC press.ISBN 0849304814.
  9. ↑Weast, Robert (1984).CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110.ISBN 0-8493-0464-4.
  10. ↑Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021)."The NUBASE2020 evaluation of nuclear properties"(PDF).Chinese Physics C.45 (3): 030001.doi:10.1088/1674-1137/abddae.
  11. ↑Gaboy, Luciano L.Arsenic, arsenik, arseniko, simbolo As - Gabby's Dictionary: Praktikal na Talahuluganang Ingles-Filipino ni Gabby/Gabby's Practical English-Filipino Dictionary, GabbyDictionary.com.
Talahanayang peryodiko
H He
LiBe BCNOFNe
NaMg AlSiPSClAr
KCa ScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr
RbSr YZrNbMoTcRuRhPdAgCdInSnSbTeIXe
CsBaLaCePrNdPmSmEuGdTbDyHoErTmYbLuHfTaWReOsIrPtAuHgTlPbBiPoAtRn
FrRaAcThPaUNpPuAmCmBkCfEsFmMdNoLrRfDbSgBhHsMtDsRgCnNhFlMcLvTsOg
 
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Metal		Mga Metal
na Umilde		Mga MetalodeIbang
Di-metal		Mga AlohinoMga Hanging
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