โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Arsenic
  • ๐Ÿ‡จ๐Ÿ‡ณ ็ ท
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Arseen
  • ๐Ÿ‡ซ๐Ÿ‡ท Arsenic
  • ๐Ÿ‡ฉ๐Ÿ‡ช Arsen
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ืืจืกืŸ
  • ๐Ÿ‡ฎ๐Ÿ‡น Arsenico
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒ’็ด 
  • ๐Ÿ‡ต๐Ÿ‡น Arsênico
  • ๐Ÿ‡ท๐Ÿ‡บ ะœั‹ัˆัŒัะบ
  • ๐Ÿ‡ช๐Ÿ‡ธ Arsénico
  • ๐Ÿ‡ธ๐Ÿ‡ช Arsenik

Arsenic: the essentials

Arsenic atoms have 33 electrons and the shell structure is 2.8.18.5. The ground state electronic configuration of neutral arsenic is [Ar].3d10.4s2.4p3 and the term symbol of arsenic is 4S3/2.

Arsenic: description  

Elemental arsenic occurs in two solid modifications: yellow, and grey or metallic, with specific gravities of 1.97, and 5.73, respectively. The element is a steel grey, very brittle, crystalline, semimetallic (metalloid) solid. It tarnishes in air, and when heated rapidly oxidises to arsenous oxide which has a garlic odour.

Arsenic and its compounds are poisonous as any reader of "who-done-it" books knows. Upon heating arsenic and some minerals containing arsenic, it sublimes (transfers from the solid to the gaseous state, without passing through the liquid state).

arsenic
This sample is from The Elements Collection, an attractive and safely packaged collection of the 92 naturally occurring elements that is available for sale.

Arsenic: physical properties

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Arsenic: heat properties

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Arsenic: electronegativities

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Arsenic: orbital properties

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Arsenic: abundances

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Arsenic: crystal structure

As crystal structure
The solid state structure of arsenic is: bcc (body-centred cubic).

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Arsenic: biological data

Arsenic, despite its poisonous reputation, may be a necessary ultratrace element for humans. It is a necessary ultratrace element for red algae, chickens, rats, goats, and pigs. A deficiency results in inhibited growth.

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Arsenic: uses

Uses...

Arsenic: reactions

Reactions of arsenic as the element with air, water, halogens, acids, and bases where known.

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Arsenic: binary compounds

Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of arsenic where known.

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Arsenic: compound properties

Bond strengths; lattice energies of arsenic halides, hydrides, oxides (where known); and reduction potentials where known.

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Arsenic: history

Arsenic was discovered by known since ancient times in unknown at not known. Origin of name: from the Greek word "arsenikon" meaning "yellow orpiment".

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Arsenic: isotopes

Isotope abundances of arsenic
Isotope abundances of arsenic with the most intense signal set to 100%.

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Arsenic: isolation

Isolation: it is not usually necessary to make arsenic in the laboratory as it is commercially available. Arsenic is found in nature in a number of minerals including realgar (As4S4), orpiment (As2S3), arsenolite (As2O3), and iron minerals such as arsenopyrite (FeAsS) and loellingite (FeAs2). Arsenic is made on an industrial scale by heating appropriate minerals in the absence of air. The arsenic is condensed out as a solid.

FeAsS (700°C) → FeS + As(g) → As(s)