33As
Arsenic
Metalloid
Properties of Arsenic
- Atomic number (Z)
- 33
- Symbol
- As
- Name
- Arsenic
- Atomic mass
- 74.922 u
- Period
- 4
- Group
- 15
- Family
- Nitrogen group
- Classification
- Metalloid
- Electron configuration
- [Ar] 3d¹⁰ 4s² 4p³
About Arsenic
Arsenic is a chemical element with symbol As and atomic number 33 (atomic mass of about 74.922 u). It is classified as a metalloid on the periodic table.
On the periodic table, Arsenic is located in period 4, in group 15, belonging to the nitrogen group family. An element's position reveals trends in its properties, such as atomic radius, electronegativity and metallic character.
The electron configuration of Arsenic is [Ar] 3d¹⁰ 4s² 4p³, which determines how it forms chemical bonds and takes part in reactions.