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Magnesium Properties
Magnesium


Physical
0
Melting Point
650.00 °C 61
Boiling Point
1,107.00 °C 66
Hardness
0
Mohs Hardness
2.50 14
Brinell Hardness
260.00 MPa 36
Vickers Hardness
Not Available 0
Optical Properties
0
Refractive Index
Not Available 0
Reflectivity
74.00 % 7
Speed of Sound
4,940.00 m/s 11
Allotropes
No 0
α Allotropes
Not Available 0
β Allotropes
Not Available 0
γ Allotropes
Not Available 0
Chemical
0
Chemical Formula
Mg 0
Isotopes
0
Known Isotopes
15 24
Electronegativity
0
Pauling Electronegativity
1.31 31
Sanderson Electronegativity
1.32 18
Allred Rochow Electronegativity
1.23 25
Mulliken-Jaffe Electronegativity
1.37 16
Allen Electronegativity
1.29 35
Electropositivity
0
Pauling Electropositivity
2.69 23
Ionization Energies
0
1st Energy Level
737.70 kJ/mol 24
2nd Energy Level
1,450.70 kJ/mol 42
3rd Energy Level
7,732.70 kJ/mol 5
Electrochemical Equivalent
0.45 g/amp-hr 69
Electron Work Function
3.66 eV 29
Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility 0
Mechanical
0
Density
0
Density At Room Temperature
1.74 g/cm3 79
Density When Liquid (at m.p.)
1.58 g/cm3 55
Vapor Pressure
0
Vapor Pressure at 1000 K
Not Available 0
Vapor Pressure at 2000 K
Not Available 0
Tensile Strength
Not Available 0
Viscosity
Not Available 0
Elasticity properties
0
Shear Modulus
17.00 GPa 37
Bulk Modulus
45.00 GPa 25
Young's Modulus
45.00 GPa 39
Poisson Ratio
0.29 15
Other Mechanical Properties
NA 0
Periodic Table
0
Symbol
Mg 0
Group Number
2 16
Period Number
3 5
Block
s block 0
Element Family
Alkaline Earth 0
Atomic
0
Atomic Number
12 89
Atomic Weight
24.31 amu 83
Atomic Volume
13.97 cm3/mol 37
Electron Configuration
[Ne] 3s2 0
Valence Electron Potential
40.00 (-eV) 47
Atom
0
Number of Protons
12 88
Number of Neutrons
12 66
Number of Electrons
12 88
Crystal Structure
Hexagonal Close Packed (HCP) 0
Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100 0
Radius of an Atom
0
Atomic Radius
160.00 pm 27
Covalent Radius
141.00 pm 43
Van der Waals Radius
173.00 pm 37
Lattice Constant
320.94 pm 54
Lattice Angles
π/2, π/2, 2 π/3 0
Lattice C/A Ratio
Not Available 0
Adjacent Atomic Numbers
0
Next Element
17 0
Previous Element
4 0
Magnetic
0
Electrical Properties
0
Resistivity
43.90 nΩ·m 45
Electrical Conductivity
0.23 106/cm Ω 7
Electron Affinity
0.00 kJ/mol 40
Electrical Property
Conductor 0
Magnetic Characteristics
0
Specific Gravity
1.74 66
Magnetic Ordering
Paramagnetic 0
Permeability
Not Available 0
Susceptibility
Not Available 0
Thermal
0
Specific Heat
1.02 J/(kg K) 4
Thermal Conductivity
156.00 W/m·K 8
Critical Temperature
Not Available 0
Molar Heat Capacity
24.87 J/mol·K 47
Thermal Expansion
24.80 µm/(m·K) 15
Standard Molar Entropy
32.70 J/mol.K 46
Enthalpy
0
Enthalpy of Vaporization
128.70 kJ/mol 52
Enthalpy of Fusion
8.95 kJ/mol 39
Enthalpy of Atomization
148.50 kJ/mol 53
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