Arsenic [As] (CAS-ID: 7440-38-2) locate me
An: 33 N: 42 Am: 74.92160 (2)
Group No: 15 Group Name: Pnictogen
Block: p-block Period: 4
State: solid at 298 K
Colour: metallic grey Classification: Semi-metallic
Boiling Point: 887K (614'C)
Melting Point: 1090K (817'C)
Density: 5.727g/cm3
Shell Structure diagrams | Atomic Radius diagram
Isotopes

Discovery Information
Who: Albertus Magna
When: 1250
Where: Unknown
Name Origin
Greek: arsenikos (male); Latin: arsenicum.
Sources
Found in mispickel (arsenopyrite).
Uses
Used as a deadly poison, in shotgun pellets, metal for mirrors, glass, lasers, light-emitting diodes (LEDs) and in semiconductors.
Notes
Arsenic is a carcinogen, associated with lung cancer when inhaled. Contact with skin can result in skin cancer. Also damage to intestines and liver. Toxic when ingested. It is found in pesticides and wood preservatives. It is naturally occurring in many household products.
In Victorian times, arsenic was mixed with vinegar and chalk and then eaten by women to improve the complexion of their faces, making their skin more fair to show they did not work in the fields. Arsenic was also rubbed into the faces and arms of women to improve their complexion.
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