Arsenic

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Arsenic
Element

Arsenic may appear to be a poisonous element. This is because it is used as a
poison for murder both in real life cases and in made up books. But there are a
lot of chemical uses for arsenic such as it being a specimen. Arsenic is also
known arsenic in French, Arsen in German, arsenico in Italian and arsenico in
Spanish. The atomic number of the element arsenic is 33. The atomic weight is
74.92160(2). It’s symbol on the periodic table is As and its electronic
configuration is [Ar].3d10.4s2.4p3. Arsenic occurs in two solid modifications:
yellow, and gray or metallic. Its color is tin- white which tarnishes to dark
gray or black. Its luster is metallic but the tarnish will dull the luster. The
transparency of crystals of arsenic are opaque. Its hardness is 3.4. Its
specific gravities are 1.97 and 5.73, respectively. Arsenic is steel gray, very
brittle, crystalline, semi-metallic (metalloid) solid. It tarnishes in air, and
oxidizes to arsenous oxide when it is heated rapidly. Arsenous oxide has a
garlic odor. Its is associated with the minerals silver, dyscrasite, barite,
cinnabar and nickeline. Arsenic seems to be known as poisonous. When you heat
arsenic and certain minerals that contains arsenic, it sublimes. Ars...

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