ARSENIC

 ARSENIC (33) (solid)  73(80.3 days)EC  74(17.9 days)B+,B-,EC

Atomic radius:1.33Deg. A (Quantum mech. value for a free atom)

Atomic volume:13.1 cm(3)/mol at 300Deg. Kelvin

Atomic weight:74.9216 (Based on Carbon 12)

Boiling point:876(Subliminal)

Covalent radius:1.2Deg. A

Crystal structure:Rhombohedral

Density:5.723 g/cm(3) at 300Deg. Kelvin

Electrical conductivity:.0345 10(x6) Ohm(x.1) cm(x.1) at 293Deg. Kelvin

Electron configuration:1s(2)2s(2)p(6)3s(2)p(6)3d(10)4s(2)p(3)

Electronegativity:2.18 (Pauling's)

First ionization potential:9.81 V

Heat of fusion:

Heat of vaporization:34.76 kJ/mol at boiling point

Melting point:1081Deg. Kelvin at 28atm

Oxidation states:+-3,5 acidic(5)

Specific heat capacity:.33 Jg(x.1) K(x.1) at 300Deg. Kelvin

Thermal conductivity:.5 W cm(x.1) K(x.1) at 300Deg. Kelvin

Description:A trivalent and pentavalent,solid,poisonous element that is

commonly metallic steel-gray,crystalline and brittle which is used in medicine

and in the manufacture of electronic components.

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