Magnesium

Statistics:

• Name: Magnesium
• Symbol: Mg
• Classification: Alkaline Earth Metal
• Atomic Number: 12
• Atomic Mass: 24.305 g/mol
• Density: 1.74 g/cm³
• Melting: 648.8°C
• Boiling: 1107°C
• Protons & Electrons:12
• Neutrons:12
• Discovered: 1755
• Discovered By: Black
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 2

Isotopes:

Isotope: Half-life

• ²⁴Mg: stable
• ²⁵Mg: stable
• ²⁶Mg: stable
• ²⁷Mg: 9.458 minutes
• ²⁸Mg: 20.91 hours

Brief Summary

Magnesium is a Alkaline Earth Metal with the symbol 'Mg' and contains 12 Protons & Electrons with 12 neutrons in the nucleus of the atom. Magnesium has an atomic mass of 24.305 g/mol and, at a temperature of 20°C, has a density of 1.74 g/cm³. It will melt at a temperature of 648.8°C and boil at 1107°C.

Magnesium was discovered by Black in 1755 and is named 'Magnesium' the city of Magnesia.

Some common usages for Magnesium: airplane and missile technology.

Definitions and Notes

Density listed is at a temperature of 20°C.

Isotopes are forms of an element who have the same atomic number but different mass because they contain different number of neutrons.

Half-life is the time required for a quantity of a subject to fall to half of its current quantity.

MLA Citing Format

Magnesium :: Mg :: 12 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/magnesium.html>.