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Name
Atomic Number
Atomic Mass
Electron Configuration
Number of Neutrons
Melting Point
Boiling Point
Date of Discovery
Crystal Structure
Element Groups:
Alkali Metals
Alkaline Earth Metals
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Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page
Basic Information
Name: Magnesium
Symbol: Mg
Atomic Number: 12
Atomic Mass: 24.305 amu
Melting Point: 650.0 °C (923.15 K, 1202.0 °F)
Boiling Point: 1107.0 °C (1380.15 K, 2024.6 °F)
Number of Protons/Electrons: 12
Number of Neutrons: 12
Classification: Alkaline Earth
Crystal Structure: Hexagonal
Density @ 293 K: 1.738 g/cm3
Color: grayish
Atomic Structure
![[Bohr Model of Magnesium]](../bohr/b0012.gif) |
Number of Energy Levels: 3 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 2 |
Isotopes
| Isotope | Half Life |
| Mg-24 | Stable |
| Mg-25 | Stable |
| Mg-26 | Stable |
| Mg-27 | 9.45 minutes |
| Mg-28 | 21.0 hours |
Facts
Date of Discovery: 1808
Discoverer: Sir Humphrey Davy
Name Origin: Magnesia (City)
Uses: airplanes, missiles
Obtained From: sea water
Related Links
Note: The external links below are not a part of this site and their content is not the responsibility of this site- Healthworld Online - Magnesium
- Contains an "Introduction to Tungsten", among other things
MLA Format for Citing This Page
Bentor, Yinon. Chemical Element.com - Magnesium. <http://www.chemicalelements.com/elements/mg.html>.
For more information about citing online sources, please visit the MLA's Website.
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