| Atomic Number: | 12 |
| Element Symbol: | Mg |
| Element Name: | Magnesium |
| Atomic Weight: | 24.3050 |
| Group Number: | 2 |
| Group Name: | Alkaline earth metal |
| Period Number: | 3 |
| Block: | s-block |
| Ground State Configuration: | [Ne] 3s2 |
| Ground State Level: | 1S0 |
| Standard State: | Solid |
| Common Valences: | 0,2 |
| Bond Length: | 319.7 |
| Atomic Radius Empirical: | 150 |
| Atomic Radius Calculated: | 145 |
| Covalent Radius Empirical: | 130 |
| Vander Waals Radius: | 173 |
| First Ionization Energy: | 737.7 |
| Pauling Electronegativity: | 1.31 |
| Sanderson Electronegativity: | 1.32 |
| Allred Rochow Electronegativity: | 1.23 |
| Mulliken Jaffe Electronegativity: | 1.37 |
| Allen Electronegativity: | 1.293 |
| Density Of Solid: | 1738 |
| Molar Volume: | 14.00 |
| Velocity Of Sound: | 4602 |
| Youngs Modulus: | 45 |
| Rigidity Modulus: | 17 |
| Bulk Modulus: | 45 |
| Poissons Ratio: | 0.29 |
| Mineral Hardness: | 2.5 |
| Brinell Hardness: | 260 |
| Electrical Resistivity: | 4.4 |
| Reflectivity: | 74 |
| Melting Point: | 650 |
| Boiling Point: | 1090 |
| Thermal Conductivity: | 160 |
| Coefficient Of Linear Expansion: | 8.2 |
| Enthalpy Of Fusion: | 8.7 |
| Enthalpy Of Vaporization: | 128 |
| Enthalpy Of Atmization: | 146 |
| Most Common Oxidation Numbers: | 2 |
| Color: | Silvery white |
| Classification: | Metallic |
| Discovered By: | Sir Humphrey Davy |
| Discovered At: | England |
| Discovered When: | 1755 |
| Origin Of Name: | From the Greek word Magnesia, a district of Thessaly |
Calculate the molecular weight of Magnesium or molecular weight Mg.
Also see the full list of chemical elements and atomic weights.