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Periodic table
Characteristics of the element
Symbol:
As
Name:
Arsenic
Latin name:
Arsenicum
Atomic number:
33
Atomic mass:
74,92160
Melting point:
817 (°C)
Boiling point:
613 (°C)
Density
5,727 (g/cm
3
)
Electronegativity:
2,2
Oxidation number:
-III,0,III,V
Number of neutrons:
42
Crystal structure:
Rhombohedral
Chemical serie:
Metalloids
Color:
gray
Electron configuration:
2-8-18-5
Year of discovery::
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Alloys
Symbol
Name
Next information
As+Cu
Arsen-M??
more
As+Pb
Arsen-Olovo
more
As+Sn
Arsen-Cín
more
As+Pb+Sb
Arsen-Olovo-Antimon
more
Sputtering targets
Symbol
Name
Next information
As+Ga
Arsen-Gallium
more
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Update: 26.11.25