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Arseniku

Ibat king Wikipedia
33 germaniumarsenicselenium
P

As

Sb
General
Lagyu, Symbol, Numeru arsenic, As, 33
Chemical seriesmetalloids
Lupung, Period, Bloki 15, 4, p
Itsurametallic gray
Standard atomic a timbang74.92160(2) g·mol1
Electron configuration[Ar] 3d10 4s2 4p3
Electrons balang shell2, 8, 18, 5
Physical properties
Phasesolid
Pangasiksik (near r.t.)5.727 g·cm3
Liquid density at m.p.5.22 g·cm3
Malalasong point1090K
(817°C, 1503°F)
Bubukal a pointsubl. 887K
(614°C, 1137°F)
Critical temperature1673 K
Heat of fusion(gray) 24.44 kJ·mol1
Heat of vaporization? 34.76 kJ·mol1
Agiu king pali(25°C) 24.64 J·mol1·K1
Vapor pressure
P(Pa)1101001 k10 k100 k
at T(K)553596646706781874
Atomic properties
Crystal pangatalakadrhombohedral
Oxidation states±3, 5
(mildly acidic oxide)
Electronegativity2.18 (Pauling scale)
Ionization energies
(more)
1st: 947.0 kJ·mol1
2nd: 1798 kJ·mol1
3rd: 2735 kJ·mol1
Atomic radius115 pm
Atomic radius (calc.)114 pm
Covalent radius119 pm

Template:Elementbox vanderwaalsrad pm

Dakal pang Aliwa
Magnetic orderingno data
Electrical resistivity(20°C) 333 nΩ·m
Thermal conductivity(300K) 50.2 W·m1·K1
Young's modulus8 GPa
Bulk modulus22 GPa
Mohs hardness3.5
Brinell a sias1440 MPa
[[CAS talaan a numeru]7440-38-2
Mepiling isotopes
Main article: Isotopes of arseniku
iso NA kapitnang-bie DM DE (MeV) DP
73As syn 80.3 d ε - 73Ge
γ 0.05D, 0.01D, e -

Template:Elementbox isotopes decay4

75As 100% Ing As stable ya kambe ning 42 neutrons
Dalerayan


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