• Name: Magnesium

  • Symbol: Mg

  • Number of Energy Levels: 3

  • Electrons on the outer energy level: 2

  • Atomic Number: 12

  • Atomic Mass: 23.305 Amu

  • Protons / Electrons: 12

  • Neutrons: 12

  • Density: 1.738 g/cm3

  • Classification: Alkaline Earth

Top 22 interesting facts about Magnesium

  • Magnesium was discovered in 1808 by Sir Humphrey Davy.
  • Magnesium is mainly obtained from sea water.
  • Magnesium takes its name from the Greek word Magnesia which is a district of Thessaly.
  • Magnesium is the eighth most abundant element in the Earth crust (the forth in the Earth as a whole) and the ninth in the Universe.
  • Magnesium represents 13% of the Earth mass.
  • Magnesium can be found in large quantities in the Earth's mantle.
  • Magnesium is the eleventh most abundant element by mass in human body.
  • Magnesium is a strong metal, very light-weight, and highly flammable.
  • Magnesium density is just two thirds of the density of Aluminum.
  • Magnesium is soluble in water so it can be found in large quantities in seawater.
  • Magnesium reacts with water but slower than Calcium.
  • Like Sodium, Magnesium is produced in stars.
  • The elemental Magnesium is very reactive and it is not found naturally on Earth but in compounds.
  • Magnesium is used to produce aluminum-magnesium alloys because these are light and strong.
  • In medicine, Magnesium is used in laxatives production (but not only).
  • Magnesium ions are very important for all living cells.
  • Magnesium is used in fertilizers since it is part of chlorophyll.
  • Magnesium was used in World War Two in incendiary weapons.
  • Fireworks production uses Magnesium because of the brilliant white light it produces.
  • Magnesium was used in the early days of photography as a source of light.
  • Magnesium has three stable isotopes and all three are found on Earth in large quantities.
  • China is the most important producer of Magnesium in the world; 80% of the world's Magnesium is produced in China.