Mg

Magnesium

Atomic Number 12 · Metal ribbon/turnings

A lightweight structural metal. Burns with a brilliant white flame and is essential for chlorophyll in plants.

Atomic Mass

24.305 u

Category

Alkaline Earth Metal

Phase (STP)

Solid

Density

1.738 g/cm³

Melting Point

650 °C

Boiling Point

1091 °C

Electronegativity

1.31 (Pauling)

Atomic Radius

150 pm

Electron Configuration

[Ne] 3s2

Discovered

1755 — Joseph Black

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