Periodic table of elements

33 - Arsenic [As]

33: Arsenic - Arsenicum [As]
Group: 15
Period: 4
Atomic number: 33
Atomic mass: 74.92160
Configuration: [Ar] 3d104s24p3
Atomic radius: 114 pm
Covalent radius: 119 pm
Electron affinity: 78 eV
Ionization energy: 9.7886 eV
Electronic term: 4S3/2
Mass fraction in the earth crust: 0.0000021
Mass fraction in the earth space: 0.000000008
Electronegativity: 2.4

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