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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]
Arsenic is also a common n-type dopant in semiconductor electronic devices, and a component of the III–V compound semiconductor gallium arsenide. Arsenic and its compounds, especially the trioxide, are used in the production of pesticides, treated wood products, herbicides, and insecticides. These applications are declining with the ...
Diamond and graphite are two allotropes of carbon: pure forms of the same element that differ in crystalline structure.. Allotropy or allotropism (from Ancient Greek ἄλλος (allos) 'other' and τρόπος (tropos) 'manner, form') is the property of some chemical elements to exist in two or more different forms, in the same physical state, known as allotropes of the elements.
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Arsenicin A is a naturally occurring arsenic heterocycle with the molecular formula C 3 H 6 As 4 O 3. It was first isolated from the New Caledonian marine sponge Echinochalina bargibanti . [ 1 ]
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Allotropes of sulfur: see Allotropes of sulfur: 26 iron: Allotropes of iron: see Allotropes of iron: 33 arsenic: Allotropes of arsenic: grey (most common), yellow, black (see Allotropes of arsenic) 50 tin: silvery-white, β (beta); gray, α (alpha) 74 tungsten: α-tungsten (common), β-tungsten 84 polonium: α, β 94 plutonium: Allotropes of ...