All chemical elements

Symbol

As

Atomic number

33

Chemical property

Metalloid

Origin o the name

English word (Latin arsenicum)

Group

15

Period

4

Atomic weight (u)

74.921595

Atomic weight uncertainty (u)

0.000006

Density (g/cm³)

5.776

Melting point (K)

1090

Boiling point (K)

887

Heat capacity (J/(g·K))

0.329

Electro-negativity

2.18

Abundance in earth's crust (mg/kg)

1.8