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What is Magnesium?
Magnesium


Periodic Table
0
Symbol
Mg 0
Group Number
2 16
Period Number
3 5
Block
s block 0
Element Family
Alkaline Earth 0
CAS Number
7439954 83
Space Group Name
P63/mmc 0
Space Group Number
194.00 5
Facts
0
Interesting Facts
  • Magnesium ions are present in every chlorophyll of every green plant .
  • Controlling Magnesium fire by pouring water on it will result in explosions.
0
Sources
By Electrolysis Process, In Ocean, Mining 0
History
0
Who Discovered
Joseph Black 0
Discovery
In 1755 0
Abundance
0
Abundance In Universe
6 * 10-2 % 2
Abundance In Sun
~0.07 % 2
Abundance In Meteorites
12.00 % 2
Abundance In Earth's Crust
2.90 % 4
Abundance In Oceans
0.13 % 2
Abundance In Humans
0.03 % 4
Uses
0
Uses & Benefits
  • Magnesium aluminum alloy improves the mechanical strength and welding characteristics and hence it is used in aeroplane and car manufacturing.
  • It is also used to remove sulfur from the molten iron and steel.
0
Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry 0
Medical Uses
NA 0
Other Uses
Surgical Instruments Manufacturing 0
Biological Properties
0
Toxicity
Non Toxic 0
Present in Human Body
Yes 0
In Blood
37.80 Blood/mg dm-3 5
In Bone
1,800.00 p.p.m. 4
Physical
0
Melting Point
650.00 °C 61
Boiling Point
1,107.00 °C 66
Appearance
0
Physical State
Solid 0
Color
Gray 0
Luster
NA 0
Hardness
0
Mohs Hardness
2.50 14
Brinell Hardness
260.00 MPa 36
Vickers Hardness
Not Available 0
Speed of Sound
4,940.00 m/s 11
Optical Properties
0
Refractive Index
Not Available 0
Reflectivity
74.00 % 7
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
4th Energy Level
10,542.50 kJ/mol 4
5th Energy Level
13,630.00 kJ/mol 3
6th Energy Level
18,020.00 kJ/mol 3
7th Energy level
21,711.00 kJ/mol 3
8th Energy Level
25,661.00 kJ/mol 3
9th Energy Level
31,653.00 kJ/mol 3
10th Energy Level
35,458.00 kJ/mol 5
11th Energy Level
169,988.00 kJ/mol 1
12th Energy Level
189,368.00 kJ/mol 1
13th Energy Level
Not Available 0
14th Energy Level
Not Available 0
15th Energy Level
Not Available 0
16th Energy Level
Not Available 0
17th Energy Level
Not Available 0
18th Energy Level
Not Available 0
19th Energy Level
Not Available 0
20th Energy Level
Not Available 0
21st Energy Level
Not Available 0
22nd Energy Level
Not Available 0
23rd Energy Level
Not Available 0
24th Energy Level
Not Available 0
25th Energy Level
Not Available 0
26th Energy Level
Not Available 0
27th Energy Level
Not Available 0
28th Energy Level
Not Available 0
29th Energy Level
Not Available 0
30th Energy Level
Not Available 0
Electrochemical Equivalent
0.45 g/amp-hr 69
Electron Work Function
3.66 eV 29
Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility 0
Atomic
0
Atomic Number
12 89
Electron Configuration
[Ne] 3s2 0
Crystal Structure
Hexagonal Close Packed (HCP) 0
Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100 0
Atom
0
Number of Protons
12 88
Number of Neutrons
12 66
Number of Electrons
12 88
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
Atomic Weight
24.31 amu 83
Atomic Volume
13.97 cm3/mol 37
Adjacent Atomic Numbers
0
Previous Element
4 0
Next Element
17 0
Valence Electron Potential
40.00 (-eV) 47
Lattice Constant
320.94 pm 54
Lattice Angles
π/2, π/2, 2 π/3 0
Lattice C/A Ratio
Not Available 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
Tensile Strength
Not Available 0
Viscosity
Not Available 0
Vapor Pressure
0
Vapor Pressure at 1000 K
Not Available 0
Vapor Pressure at 2000 K
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
Magnetic
0
Magnetic Characteristics
0
Specific Gravity
1.74 66
Magnetic Ordering
Paramagnetic 0
Permeability
Not Available 0
Susceptibility
Not Available 0
Electrical Properties
0
Electrical Property
Conductor 0
Resistivity
43.90 nΩ·m 45
Electrical Conductivity
0.23 106/cm Ω 7
Electron Affinity
0.00 kJ/mol 40
Thermal
0
Specific Heat
1.02 J/(kg K) 4
Molar Heat Capacity
24.87 J/mol·K 47
Thermal Conductivity
156.00 W/m·K 8
Critical Temperature
Not Available 0
Thermal Expansion
24.80 µm/(m·K) 15
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
Standard Molar Entropy
32.70 J/mol.K 46
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