GUESS ELEMENTFREE CHEMISTRY QUIZ
12 Mg ATOMIC MASS 24.305

ELEMENT 12 · ALKALINE EARTH METAL

Magnesium (Mg)

Magnesium is a light structural metal and a biologically essential element at the centre of chlorophyll molecules.

Atomic number
12
Category
Alkaline earth metal
Period
3
Group
2
State
Solid

Fun facts about Magnesium

  • Burning magnesium produces an intense white light.
  • Magnesium alloys have a high strength-to-mass ratio.
  • Seawater contains substantial dissolved magnesium ions.

Common uses of Magnesium

  • Lightweight alloys
  • Flares and fireworks
  • Refractory furnace linings

Where Magnesium sits in the periodic table

Magnesium is classified as a alkaline earth metal in period 3 and group 2 of the periodic table. Under the conditions represented in this reference, its state is solid.

Quick chemistry revision

For quick revision, pair the symbol Mg with atomic number 12 and the listed atomic mass 24.305. The summary, facts, and uses above keep those element properties together in one reference.