Periodic table / Magnesium

Overview

Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (Group 2, or alkaline earth metals) of the periodic table:they each have the same electron configuration in their outer electron shell producing a similar crystal structure. Magnesium is the ninth most abundant element in the universe.

Electron configuration

The electron configuration of Magnesium is [Ne] 3s2, with electron shells of 2, 8, 2.

Physical and chemical properties

Magnesium is classified as a alkaline earth metal. It has an atomic mass of 24.305 and exists as a solid at standard conditions, appearing as shiny grey solid.

Real-world uses of Magnesium

Magnesium and other alkaline earth metals are commonly used in alloys, industrial compounds, and in some cases in medical or agricultural applications.

Interesting facts about Magnesium

• Magnesium has the atomic number 12 and chemical symbol Mg.
• It belongs to period 3, group 2 of the periodic table.
• Magnesium was discovered by Joseph Black.

Explore Magnesium interactively

Want to compare Magnesium with other elements or see it highlighted on the full table? Open the interactive periodic table and click on Mg to explore properties, trends, and neighboring elements. You can also test your knowledge with our periodic table quiz game.