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Arsenic
	33As
	germanium ← arsenic → selenium
Panagway
	metallic grey;
Kinatibuk-ang mga kinaiya
Ngalan, simbolo, kaiphan	arsenic, As, 33
Paglitok	/ˈɑːrsᵻnɪk/ [[Help:Pronunciation respelling key\|Plantilya:Smallcaps all-sə-nik]],; also /ɑːrˈsɛnɪk/ [[Help:Pronunciation respelling key\|ar-Plantilya:Smallcaps all-ik]] when attributive
Kategoriyang elemento	metalloid
Group, period, block	15, 4, p
Gibug-aton sa atomo	74.92160(2)
Kontorno sa elektron	[Ar] 4s2 3d10 4p3; 2, 8, 18, 5 Electron shells of arsenic (2, 8, 18, 5)
History
Pagkadiskobre	Early Bronze Age (2500 BC)
First isolation	Albertus Magnus (1250)
Physical properties
Phase	magahi
Density (near r.t.)	5.727 g·cm−3
Liquid density at m.p.	5.22 g·cm−3
Sublimation point	887 K, 615 °C, 1137 °F
Triple point	1090 K (817°C), 3628 kPa
Critical point	1673 K, ? MPa
Heat of fusion	(grey) 24.44 kJ·mol−1
Heat of vaporization	? 34.76 kJ·mol−1
Molar heat capacity	24.64 J·mol−1·K−1
Vapor pressure
Atomic properties
Oxidation states	5, 3, 2, 1, -3; (mildly acidic oxide)
Electronegativity	2.18 (Pauling scale)
Ionization energies; (more)	1st: 947.0 kJ·mol−1
	2nd: 1798 kJ·mol−1
	3rd: 2735 kJ·mol−1
Atomic radius	119 pm
Covalent radius	119±4 pm
Van der Waals radius	185 pm
Miscellanea
Crystal structure	simple trigonal
Magnetic ordering	diamagnetic
Electrical resistivity	(20 °C) 333 nΩ·m
Thermal conductivity	50.2 W·m−1·K−1
Young's modulus	8 GPa
Bulk modulus	22 GPa
Mohs hardness	3.5
Brinell hardness	1440 MPa
CAS registry number	7440-38-2
Most stable isotopes
	Main article: Isotopes of arsenic
β+	74Ge
γ	-
β−	74Se Plantilya:Infobox element/isotopes stable
	v; t; e; · r

Ang arsenico (Iningles arsenic) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga As ug kaiphan nga atomik 33. Ang arsenico mao ang metalloid.

Ang mga gi basihan niini

↑ Gokcen, N. A (1989). "The As (arsenic) system". Bull. Alloy Phase Diagrams. 10: 11–22. doi:10.1007/BF02882166.
↑ Ellis, Bobby D. (2004). "Stabilized Arsenic(I) Iodide: A Ready Source of Arsenic Iodide Fragments and a Useful Reagent for the Generation of Clusters". Inorganic Chemistry. 43: 5981. doi:10.1021/ic049281s. {{cite journal}}: |first2= missing |last2= (help)
↑ Arsenic, mindat.org
↑ editor-in-chief, David R. Lide. (2000). "Magnetic susceptibility of the elements and inorganic compounds". Handbook of Chemistry and Physics (PDF) (81 ed.). CRC press. ISBN 0849304814. {{cite book}}: |author= has generic name (help)

Galeriya sa hulagway

[Gokcen1989-1] Gokcen, N. A (1989). "The As (arsenic) system". Bull. Alloy Phase Diagrams. 10: 11–22. doi:10.1007/BF02882166.

[2] Ellis, Bobby D. (2004). "Stabilized Arsenic(I) Iodide: A Ready Source of Arsenic Iodide Fragments and a Useful Reagent for the Generation of Clusters". Inorganic Chemistry. 43: 5981. doi:10.1021/ic049281s. {{cite journal}}: |first2= missing |last2= (help)

[3] Arsenic, mindat.org

[4] tor-in-chief, David R. Lide. (2000). "Magnetic susceptibility of the elements and inorganic compounds". Handbook of Chemistry and Physics (PDF) (81 ed.). CRC press. ISBN 0849304814. {{cite book}}: |author= has generic name (help)

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Arsenico

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