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Arsenic is a chemical element with the symbol As and the atomic ... with the formula As(OH) 3. ... The valence electron count of GaAs is the same as a pair of Si ...
Arsenic is used as the group 15 element in the III-V semiconductors gallium arsenide, indium arsenide, and aluminium arsenide. [10] The valence electron count of GaAs is the same as a pair of Si atoms, but the band structure is completely different which results in distinct bulk properties. [11]
arsenic monoxide: 12005-99-1 AsO 2: arsenic dioxide: 12255-12-8 AsP: arsenic monophosphide: 12255-33-3 AsP 3: arsenic triphosphide: 12511-95-4 AsTl: thallium arsenide: 12006-09-6 As 2 I 4: arsenic diiodide: 13770-56-4 As 2 O 3: arsenic trioxide: 1327-53-3 As 2 P 2: arsenic diphosphide: 12512-03-7 As 2 O 5: arsenic pentoxide: 1303-28-2 As 2 S 4 ...
Gray, or metallic arsenic, pictured under an argon atmosphere. Gray arsenic, also called grey arsenic or metallic arsenic, is the most stable allotrope of the element at room temperature, and as such is its most common form. [1] This soft, brittle allotrope of arsenic has a steel gray, metallic color, and is a good conductor. [2]
In its standard state arsine is a colorless, denser-than-air gas that is slightly soluble in water (2% at 20 °C) [1] and in many organic solvents as well. [citation needed] Arsine itself is odorless, [5] but it oxidizes in air and this creates a slight garlic or fish-like scent when the compound is present above 0.5 ppm. [6]
The group 1 alkali metals and the group 2, alkaline earth metals, form arsenides with isolated arsenic atoms. They form upon heating arsenic powder with excess sodium gives sodium arsenide (Na 3 As). The structure of Na 3 As is complex with unusually short Na–Na distances of 328–330 pm which are shorter than in sodium metal.
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Trimethylarsine (abbreviated TMA or TMAs) is the chemical compound with the formula (CH 3) 3 As, commonly abbreviated AsMe 3 or TMAs. This organic derivative of arsine has been used as a source of arsenic in microelectronics industry, [1] a building block to other organoarsenic compounds, and serves as a ligand in coordination chemistry.