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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]
Grey arsenic is a semimetal, but becomes a semiconductor with a bandgap of 1.2–1.4 eV if amorphized. [24] Grey arsenic is also the most stable form. Yellow arsenic is soft and waxy, and somewhat similar to tetraphosphorus (P 4). [25]
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For more guidance, see Wikipedia:Translation Not to be confused with Arsenic . Ärsenik is a rap group based in Villiers-le-Bel , France , founded in 1992, and made up of two brothers, Lino (Gaëlino M'Bani) and Calbo (Calboni M'Bani), whose family is originally from Congo .
Arsenic (33 As) has 32 known isotopes and at least 10 isomers. Only one of these isotopes, 75 As, is stable; as such, it is considered a monoisotopic element. The longest-lived radioisotope is 73 As with a half-life of 80 days.
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In the room-temperature form, the zinc atoms are tetrahedrally coordinated and the arsenic atoms are surrounded by six zinc atoms at the vertices of a distorted cube. The crystalline structure of zinc arsenide is very similar to that of cadmium arsenide (Cd 3 As 2 ) , zinc phosphide (Zn 3 P 2 ) and cadmium phosphide (Cd 3 P 2 ) .
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]