Arseniko

Arsenic, ₃₃As
Arsenic
Bigkas	/ˈɑːrsənɪk/; (AR-sən-ik); as an adjective: /ɑːrˈsɛnɪk/; (ar-SEN-ik);
Allotropes	kulay-abo (pinakakaraniwan), dilaw, itim (tingnan ang mga alotropo ng arseniko)
Appearance	metallic grey
Standard atomic weight Ar°(As)
	74.921595±0.000006; 74.922±0.001 (pinaikli);
Arsenic sa talahanayang peryodiko
	germanium ← arsenic → selenium
Atomikong bilang (Z)	33
Group	15
Period	4
Block	p-block
Electron configuration	[Ar] 3d10 4s2 4p3
Electrons per shell	2, 8, 18, 5
Physical properties
Phase at STP	solido
Sublimation point	887 K (615 °C, 1137 °F)
Density (at 20° C)	grey: 5.782 g/cm3
when liquid (at m.p.)	5.22 g/cm3
Triple point	1090 K, 3628 kPa
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)
Atomic properties
Oxidation states	−3, −2, −1, 0, +1, +2, +3, +4, +5 (isang katamtamang asidikong oksido)
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
	Mga linyang espektral ng arsenic
Other properties
Natural occurrence	primordiyal
Crystal structure	grey: rhombohedral (hR2)
Lattice constants	ar = 413.15 pm; α = 54.133° pm ah = 375.99 pm; ch = 1054.58 pm (at 20 °C)
Thermal expansion	5.6 µm/(m⋅K) (at r.t.)
Thermal conductivity	50.2 W/(m⋅K)
Electrical resistivity	333 nΩ⋅m (at 20 °C)
Magnetic ordering	diamagnetic
Molar magnetic susceptibility	−5.5×10−6 cm3/mol
Young's modulus	8 GPa
Bulk modulus	22 GPa
Mohs hardness	3.5
Brinell hardness	1440 MPa
CAS Number	7440-38-2
History
Discovery	Arabic alchemists (before AD 815)
Isotopes of arsenic t; b;
γ	–
β+	74Ge
γ	–
β−	74Se
	Kategorya: Arsenic; tingnan; usapan; baguhin; \| references

Ang arseniko o arsenik (Espanyol: arsenico, Ingles: arsenic) ay isang uri ng elementong kimikal at lasong metaliko. Mayroon itong atomikong bilang na 33, atomikong timbang na 74.992, balensiyang 3 o 5, at sagisag na As. Natutunaw ang abuhing arseniko sa temperaturang 817 °C (habang nasa 28 na presyong atmosperiko, sagisag atm), sumisingaw (sublima) sa temperaturang 613 °C, at may espesipikong grabidad na 5.73. Mayroon itong tatlong anyong alotropiko, na nasa anyong may kulay na dilaw, itim, at abuhing kristalina. Ginagamit ang arseniko bilang insektisidyo o pamatay ng pesteng mga kulisap, pamatay ng mapinsalang mga damo, at inihahalo rin sa mga aloy.^[11]

Mga sanggunian

↑ "Standard Atomic Weights: Arsenic" (sa Ingles). CIAAW. 2013.
↑ 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 Ingles). doi:10.1515/pac-2019-0603. ISSN 1365-3075.
1 2 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.
↑ Gokcen, N. A (1989). "The As (arsenic) system". Bull. Alloy Phase Diagrams. 10: 11–22. doi:10.1007/BF02882166.
↑ 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 Ingles). 16 (2): 432–5. doi:10.1002/chem.200902840. PMID 19937872.
↑ 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 Ingles). 43 (19): 5981–6. doi:10.1021/ic049281s. PMID 15360247.
↑ Cverna, Fran (2002). ASM Ready Reference: Thermal properties of metals. ASM International. pp. 8–. ISBN 978-0-87170-768-0. pdf.
↑ 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.
↑ Weast, Robert (1984). CRC, Handbook of Chemistry and Physics. Boca Raton, Florida: Chemical Rubber Company Publishing. pp. E110. ISBN 0-8493-0464-4.
↑ 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.
↑ 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.

[1] "Standard Atomic Weights: Arsenic" (sa Ingles). CIAAW. 2013.

[CIAAW2021-2] 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 Ingles). doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[Arblaster_2018-3] 1 2 Arblaster, John W. (2018). Selected Values of the Crystallographic Properties of Elements. Materials Park, Ohio: ASM International. ISBN 978-1-62708-155-9.

[Gokcen1989-4] 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 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 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.

[NUBASE2020-10] 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.

[Gaboy-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.

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