Magnesium (Mg) is a chemical element belonging to the category Alkaline earth metal, with atomic number 12 and standard atomic mass 24.305 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
Identity
- Name: Magnesium
- Symbol: Mg
- Atomic number: 12
- Atomic mass: 24.305 u
Position in the periodic table
- Group: 2
- Period: 3
- Category: Alkaline earth metal
Physico-chemical properties
- Standard state: Solid
- Melting point: 650°C
- Boiling point: 1090°C
- Density: 1.74 g/cm³ (at 20°C)
- Electron configuration: [Ne] 3s²
Scientific description
Magnesium is a chemical element with symbol Mg and atomic number 12. It belongs to the category of Alkaline earth metal and occupies group 2 and period 3 in the periodic table. Its standard atomic mass is 24.305 u. It is a lightweight, silvery metal with relatively low density and a melting point of about 650°C.