All chemical elements

Symbol

Mg

Atomic number

12

Chemical property

Alkaline earth metal

Origin o the name

Magnesia, a district of Eastern Thessaly in Greece

Group

2

Period

3

Atomic weight (u)

24.305

Atomic weight uncertainty (u)

0

Density (g/cm³)

1.738

Melting point (K)

923

Boiling point (K)

1363

Heat capacity (J/(g·K))

1.023

Electro-negativity

1.31

Abundance in earth's crust (mg/kg)

23300