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Magnesium Lawrencium Comparison


Lawrencium Magnesium comparison


Periodic Table

Symbol
Mg   
Lr   

Group Number
2   
16
Not Available   

Period Number
3   
7   

Block
s block   
d block   

Element Family
Alkaline Earth   
Actinide   

CAS Number
7439954   
99+
22537195   
15

Space Group Name
P63/mmc   
Not Available   

Space Group Number
194.00   
5
Not Available   

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.
  
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  

Sources
By Electrolysis Process, In Ocean, Mining   
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining   

History
  
  

Who Discovered
Joseph Black   
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research   

Discovery
In 1755   
In 1961–1971   

Abundance
  
  

Abundance In Universe
6 * 10-2 %   
2
Not Available   

Abundance In Sun
~0.07 %   
2
~-9999 %   

Abundance In Meteorites
12.00 %   
2
Not Available   

Abundance In Earth's Crust
2.90 %   
4
Not Available   

Abundance In Oceans
0.13 %   
2
Not Available   

Abundance In Humans
0.03 %   
4
Not Available   

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 Lawrencium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Pharmaceutical Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Surgical Instruments Manufacturing   
NA   

Biological Properties
  
  

Toxicity
Non Toxic   
Unknown   

Present in Human Body
Yes   
No   

In Blood
37.80 Blood/mg dm-3   
5
0.00 Blood/mg dm-3   
37

In Bone
1,800.00 p.p.m.   
4
0.00 p.p.m.   
36

Physical Properties

Melting Point
650.00 °C   
99+
1,627.00 °C   
20

Boiling Point
1,107.00 °C   
99+
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gray   
Silver   

Luster
NA   
Unknown Luster   

Hardness
  
  

Mohs Hardness
2.50   
14
Not Available   

Brinell Hardness
260.00 MPa   
36
Not Available   

Speed of Sound
4,940.00 m/s   
11
Not Available   

Optical Properties
  
  

Reflectivity
74.00 %   
7
Not Available   

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Mg   
Lr   

Isotopes
  
  

Known Isotopes
15   
24
10   
28

Electronegativity
  
  

Pauling Electronegativity
1.31   
31
Not Available   

Sanderson Electronegativity
1.32   
18
Not Available   

Allred Rochow Electronegativity
1.23   
25
Not Available   

Mulliken-Jaffe Electronegativity
1.37   
16
Not Available   

Allen Electronegativity
1.29   
35
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.69   
23
Not Available   

Ionization Energies
  
  

1st Energy Level
737.70 kJ/mol   
24
470.00 kJ/mol   
99+

2nd Energy Level
1,450.70 kJ/mol   
99+
1,428.00 kJ/mol   
99+

3rd Energy Level
7,732.70 kJ/mol   
5
2,228.00 kJ/mol   
99+

4th Energy Level
10,542.50 kJ/mol   
4
4,910.00 kJ/mol   
21

5th Energy Level
13,630.00 kJ/mol   
3
Not Available   

6th Energy Level
18,020.00 kJ/mol   
3
Not Available   

7th Energy level
21,711.00 kJ/mol   
3
Not Available   

8th Energy Level
25,661.00 kJ/mol   
3
Not Available   

9th Energy Level
31,653.00 kJ/mol   
3
Not Available   

10th Energy Level
35,458.00 kJ/mol   
5
Not Available   

11th Energy Level
169,988.00 kJ/mol   
1
Not Available   

12th Energy Level
189,368.00 kJ/mol   
1
Not Available   

Electrochemical Equivalent
0.45 g/amp-hr   
99+
3.23 g/amp-hr   
11

Electron Work Function
3.66 eV   
29
Not Available   

Other Chemical Properties
Corrosion, Highly Inflammable, Ionization, Solubility   
Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
12   
99+
103   
15

Electron Configuration
[Ne] 3s2   
[Rn] 5f14 7s2 7p1   

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+
103   
15

Number of Neutrons
12   
99+
157   
7

Number of Electrons
12   
99+
103   
15

Radius of an Atom
  
  

Atomic Radius
160.00 pm   
27
Not Available   

Covalent Radius
141.00 pm   
99+
Not Available   

Van der Waals Radius
173.00 pm   
37
246.00 pm   
8

Atomic Weight
24.31 amu   
99+
266.00 amu   
12

Atomic Volume
13.97 cm3/mol   
37
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Sodium
  
Nobelium
  

Next Element
Aluminium
  

Valence Electron Potential
40.00 (-eV)   
99+
Not Available   

Lattice Constant
320.94 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, 2 π/3   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
1.74 g/cm3   
99+
Not Available   

Density When Liquid (at m.p.)
1.58 g/cm3   
99+
Not Available   

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Shear Modulus
17.00 GPa   
37
Not Available   

Bulk Modulus
45.00 GPa   
25
Not Available   

Young's Modulus
45.00 GPa   
39
Not Available   

Poisson Ratio
0.29   
15
0.32   
12

Other Mechanical Properties
NA   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
1.74   
99+
Not Available   

Magnetic Ordering
Paramagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
43.90 nΩ·m   
99+
Not Available   

Electrical Conductivity
0.23 106/cm Ω   
7
Not Available   

Electron Affinity
0.00 kJ/mol   
40
Not Available   

Thermal Properties

Specific Heat
1.02 J/(kg K)   
4
Not Available   

Molar Heat Capacity
24.87 J/mol·K   
99+
Not Available   

Thermal Conductivity
156.00 W/m·K   
8
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
24.80 µm/(m·K)   
15
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
128.70 kJ/mol   
99+
Not Available   

Enthalpy of Fusion
8.95 kJ/mol   
39
Not Available   

Enthalpy of Atomization
148.50 kJ/mol   
99+
Not Available   

Standard Molar Entropy
32.70 J/mol.K   
99+
Not Available   

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