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Magnesium vs Bohrium

Magnesium
Bohrium
Bohrium vs Magnesium


Periodic Table
Symbol
Mg  
Bh  
Group Number
2  
16
7  
11
Period Number
3  
7  
Block
s block  
d block  
Element Family
Alkaline Earth  
Transition Metal  
CAS Number
7439954  
99+
54037148  
12
Space Group Name
P63/mmc  
-  
Space Group Number
194.00  
7
276.00  
1
Facts
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.
  
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Sources
By Electrolysis Process, In Ocean, Mining  
Found in Minerals, Mining, Synthetically Produced  
History
  
  
Who Discovered
Joseph Black  
Gesellschaft für Schwerionenforschung  
Discovery
In 1755  
In 1981  
Abundance
  
  
Abundance In Universe
0.06 %  
3
0.00 %  
37
Abundance In Sun
0.07 %  
2
-  
Abundance In Meteorites
12.00 %  
2
0.00 %  
99+
Abundance In Earth's Crust
2.90 %  
4
0.00 %  
99+
Abundance In Oceans
0.13 %  
2
-  
Abundance In Humans
0.03 %  
5
-  
Uses
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.
  
  • Currently known uses of Bohrium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry  
-  
Medical Uses
-  
-  
Other Uses
Surgical Instruments Manufacturing  
Research Purposes  
Biological Properties
  
  
Toxicity
Non Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
37.80 Blood/mg dm-3  
5
0.00 Blood/mg dm-3  
40
In Bone
1,800.00 p.p.m.  
4
0.00 p.p.m.  
99+
Physical
Melting Point
650.00 °C  
99+
-  
Boiling Point
1,107.00 °C  
99+
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gray  
-  
Luster
-  
Unknown Luster  
Hardness
  
  
Mohs Hardness
2.50  
15
7.00  
3
Brinell Hardness
260.00 MPa  
99+
270.00 MPa  
99+
Vickers Hardness
260.00 MPa  
99+
2,700.00 MPa  
4
Speed of Sound
4,940.00 m/s  
15
2,680.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.49  
37
1.50  
36
Reflectivity
74.00 %  
9
59.00 %  
24
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Mg  
Bh  
Isotopes
  
  
Known Isotopes
15  
24
5  
32
Electronegativity
  
  
Pauling Electronegativity
1.31  
32
2.00  
8
Sanderson Electronegativity
1.32  
24
1.30  
25
Allred Rochow Electronegativity
1.23  
26
1.30  
25
Mulliken-Jaffe Electronegativity
1.37  
30
1.30  
33
Allen Electronegativity
1.29  
99+
2.00  
6
Electropositivity
  
  
Pauling Electropositivity
2.69  
23
2.00  
99+
Ionization Energies
  
  
1st Energy Level
737.70 kJ/mol  
24
742.90 kJ/mol  
23
2nd Energy Level
1,450.70 kJ/mol  
99+
1,688.50 kJ/mol  
31
3rd Energy Level
7,732.70 kJ/mol  
5
2,566.50 kJ/mol  
99+
4th Energy Level
10,542.50 kJ/mol  
4
3,598.90 kJ/mol  
99+
5th Energy Level
13,630.00 kJ/mol  
3
4,727.80 kJ/mol  
99+
6th Energy Level
18,020.00 kJ/mol  
3
5,991.70 kJ/mol  
99+
7th Energy level
21,711.00 kJ/mol  
3
7,226.80 kJ/mol  
34
8th Energy Level
25,661.00 kJ/mol  
3
7,100.00 kJ/mol  
33
9th Energy Level
31,653.00 kJ/mol  
3
5,800.00 kJ/mol  
99+
10th Energy Level
35,458.00 kJ/mol  
5
7,100.00 kJ/mol  
35
11th Energy Level
169,988.00 kJ/mol  
1
8,200.00 kJ/mol  
25
12th Energy Level
189,368.00 kJ/mol  
1
82,700.00 kJ/mol  
4
13th Energy Level
7,370.00 kJ/mol  
24
7,100.00 kJ/mol  
29
14th Energy Level
737.70 kJ/mol  
99+
8,200.00 kJ/mol  
17
15th Energy Level
73,700.00 kJ/mol  
21
82,000.00 kJ/mol  
14
16th Energy Level
73,770.00 kJ/mol  
16
71,100.00 kJ/mol  
20
17th Energy Level
737.70 kJ/mol  
37
820.00 kJ/mol  
31
18th Energy Level
7,370.00 kJ/mol  
27
8,200.00 kJ/mol  
20
19th Energy Level
737.70 kJ/mol  
34
820.80 kJ/mol  
28
20th Energy Level
737.00 kJ/mol  
28
820.00 kJ/mol  
21
21st Energy Level
737.70 kJ/mol  
99+
8,200.00 kJ/mol  
11
22nd Energy Level
738.00 kJ/mol  
22
820.00 kJ/mol  
16
23rd Energy Level
737.70 kJ/mol  
99+
8,200.00 kJ/mol  
8
24th Energy Level
737.70 kJ/mol  
20
820.00 kJ/mol  
12
25th Energy Level
737.70 kJ/mol  
20
820.00 kJ/mol  
10
26th Energy Level
737.70 kJ/mol  
20
820.00 kJ/mol  
10
27th Energy Level
737.70 kJ/mol  
19
820.00 kJ/mol  
9
28th Energy Level
737.70 kJ/mol  
25
820.00 kJ/mol  
15
29th Energy Level
737.70 kJ/mol  
26
820.00 kJ/mol  
14
30th Energy Level
737.70 kJ/mol  
20
820.00 kJ/mol  
10
Electrochemical Equivalent
0.45 g/amp-hr  
99+
3.00 g/amp-hr  
21
Electron Work Function
3.66 eV  
40
4.90 eV  
12
Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility  
Ionization, Radioactive Isotopes  
Atomic
Atomic Number
12  
99+
107  
11
Electron Configuration
[Ne] 3s2  
[Rn] 5f14 6d5 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
12  
99+
107  
11
Number of Neutrons
12  
99+
155  
9
Number of Electrons
12  
99+
107  
11
Radius of an Atom
  
  
Atomic Radius
160.00 pm  
29
128.00 pm  
99+
Covalent Radius
141.00 pm  
99+
141.00 pm  
99+
Van der Waals Radius
173.00 pm  
99+
0.00 pm  
99+
Atomic Weight
24.31 amu  
99+
270.00 amu  
8
Atomic Volume
13.97 cm3/mol  
99+
23.70 cm3/mol  
14
Adjacent Atomic Numbers
  
  
Previous Element
Sodium
  
Seaborgium
  
Next Element
Aluminium
  
Hassium
  
Valence Electron Potential
40.00 (-eV)  
99+
27.20 (-eV)  
99+
Lattice Constant
320.94 pm  
99+
-  
Lattice Angles
π/2, π/2, 2 π/3  
-  
Lattice C/A Ratio
1.62  
15
1.57  
99+
Mechanical
Density
  
  
Density At Room Temperature
1.74 g/cm3  
99+
37.10 g/cm3  
3
Density When Liquid (at m.p.)
1.58 g/cm3  
99+
37.10 g/cm3  
3
Tensile Strength
150.00 MPa  
25
152.00 MPa  
24
Viscosity
0.00  
24
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
37
Elasticity properties
  
  
Shear Modulus
17.00 GPa  
99+
28.00 GPa  
32
Bulk Modulus
45.00 GPa  
29
37.00 GPa  
99+
Young's Modulus
45.00 GPa  
99+
0.00 GPa  
99+
Poisson Ratio
0.29  
15
0.35  
9
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
1.74  
99+
37.00  
5
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
8
0.00 H/m  
11
Susceptibility
0.00  
33
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
-  
Resistivity
43.90 nΩ·m  
99+
6.50 nΩ·m  
99+
Electrical Conductivity
0.23 106/cm Ω  
7
0.00 106/cm Ω  
99+
Electron Affinity
0.00 kJ/mol  
99+
-  
Thermal
Specific Heat
1.02 J/(kg K)  
4
0.10 J/(kg K)  
99+
Molar Heat Capacity
24.87 J/mol·K  
99+
37.10 J/mol·K  
2
Thermal Conductivity
156.00 W/m·K  
8
37.00 W/m·K  
36
Critical Temperature
923.00 K  
99+
1,323.00 K  
99+
Thermal Expansion
24.80 µm/(m·K)  
15
14.30 µm/(m·K)  
28
Enthalpy
  
  
Enthalpy of Vaporization
128.70 kJ/mol  
99+
270.50 kJ/mol  
99+
Enthalpy of Fusion
8.95 kJ/mol  
99+
-  
Enthalpy of Atomization
148.50 kJ/mol  
99+
-  
Standard Molar Entropy
32.70 J/mol.K  
99+
57.00 J/mol.K  
30
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