Frequently Asked Questions about Arsenic
What is the atomic number of arsenic?
Arsenic has an atomic number of 33, meaning each atom contains 33 protons in its nucleus.
What is the atomic mass of arsenic?
The standard atomic weight of arsenic is 74.922 u (unified atomic mass units).
What category does arsenic belong to?
Arsenic is classified as a metalloid.
What is the state of arsenic at room temperature?
Arsenic is a solid at 20 °C (68 °F).
What is the melting point of arsenic?
The melting point of arsenic is 816.85 °C / 1090 K.
What is the boiling point of arsenic?
The boiling point of arsenic is 613.85 °C / 887 K.
What is the density of arsenic?
The density of arsenic is 5.73 g/cm³ (20°C).
What is the electronegativity of arsenic?
Arsenic has a Pauling electronegativity of 2.18.
What is the electron configuration of arsenic?
The electron configuration of arsenic is [Ar] 3d10 4s2 4p3.
What are the common oxidation states of arsenic?
Arsenic commonly exhibits the following oxidation states: −3, +3, +5.
Is arsenic radioactive?
Arsenic is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of arsenic?
No essential biological role; toxic in many forms.
What are the common uses of arsenic?
Arsenic is used for: Semiconductors; Wood preservatives; Alloys.
