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Lawrencium vs Lutetium


Lutetium vs Lawrencium


Periodic Table

Symbol
Lr   
Lu   

Group Number
Not Available   
Not Available   

Period Number
7   
6   

Block
d block   
f block   

Element Family
Actinide   
Lanthanide   

CAS Number
22537195   
15
7439943   
99+

Space Group Name
Not Available   
P63/mmc   

Space Group Number
Not Available   
194.00   
5

Facts

Interesting Facts
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  

Sources
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research   
Georges Urbain and Carl Auer von Welsbach   

Discovery
In 1961–1971   
In 1906   

Abundance
  
  

Abundance In Universe
Not Available   
1 * 10-8 %   
30

Abundance In Sun
~-9999 %   
~0.0000001 %   
26

Abundance In Meteorites
Not Available   
0.00 %   
99+

Abundance In Earth's Crust
Not Available   
0.00 %   
99+

Abundance In Oceans
Not Available   
0.00 %   
99+

Uses

Uses & Benefits
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  

Industrial Uses
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
NA   
Alloys   

Biological Properties
  
  

Toxicity
Unknown   
Low Toxic   

Present in Human Body
No   
No   

In Blood
0.00 Blood/mg dm-3   
37
Not Available   

In Bone
0.00 p.p.m.   
36
Not Available   

Physical Properties

Melting Point
1,627.00 °C   
20
1,652.00 °C   
19

Boiling Point
Not Available   
3,402.00 °C   
19

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silvery White   

Luster
Unknown Luster   
Metallic   

Hardness
  
  

Brinell Hardness
Not Available   
893.00 MPa   
10

Vickers Hardness
Not Available   
1,160.00 MPa   
8

Speed of Sound
Not Available   
Not Available   

Optical Properties
  
  

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
Lr   
Lu   

Isotopes
  
  

Known Isotopes
10   
28
35   
4

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.27   
34

Allred Rochow Electronegativity
Not Available   
1.14   
28

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.73   
20

Ionization Energies
  
  

1st Energy Level
470.00 kJ/mol   
99+
523.50 kJ/mol   
99+

2nd Energy Level
1,428.00 kJ/mol   
99+
1,340.00 kJ/mol   
99+

3rd Energy Level
2,228.00 kJ/mol   
99+
2,022.30 kJ/mol   
99+

4th Energy Level
4,910.00 kJ/mol   
21
4,370.00 kJ/mol   
28

5th Energy Level
Not Available   
6,445.00 kJ/mol   
21

Electrochemical Equivalent
3.23 g/amp-hr   
11
2.18 g/amp-hr   
23

Electron Work Function
Not Available   
3.30 eV   
33

Other Chemical Properties
Ionization, Radioactive Isotopes   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   

Atomic Properties

Atomic Number
103   
15
71   
99+

Electron Configuration
[Rn] 5f14 7s2 7p1   
[Xe] 6s2 4f14 5d1   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
103   
15
71   
99+

Number of Neutrons
157   
7
104   
30

Number of Electrons
103   
15
71   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
174.00 pm   
20

Covalent Radius
Not Available   
187.00 pm   
20

Van der Waals Radius
246.00 pm   
8
221.00 pm   
22

Atomic Weight
266.00 amu   
12
174.97 amu   
40

Atomic Volume
Not Available   
17.78 cm3/mol   
30

Adjacent Atomic Numbers
  
  

Previous Element
Nobelium
  
Ytterbium
  

Next Element
Hafnium
  

Valence Electron Potential
Not Available   
50.90 (-eV)   
26

Lattice Constant
Not Available   
350.31 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.59   
10

Mechanical Properties

Density
  
  

Density At Room Temperature
Not Available   
9.84 g/cm3   
38

Density When Liquid (at m.p.)
Not Available   
9.30 g/cm3   
22

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
33

Vapor Pressure at 2000 K
Not Available   
3.18 (Pa)   
11

Elasticity properties
  
  

Shear Modulus
Not Available   
27.20 GPa   
26

Bulk Modulus
Not Available   
47.60 GPa   
23

Young's Modulus
Not Available   
68.60 GPa   
30

Poisson Ratio
0.32   
12
0.26   
21

Other Mechanical Properties
Unknown   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
Not Available   
9.84   
29

Magnetic Ordering
Unknown   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Conductor   

Resistivity
Not Available   
582.00 nΩ·m   
9

Electrical Conductivity
Not Available   
0.02 106/cm Ω   
99+

Electron Affinity
Not Available   
50.00 kJ/mol   
21

Thermal Properties

Specific Heat
Not Available   
0.15 J/(kg K)   
36

Molar Heat Capacity
Not Available   
26.86 J/mol·K   
24

Thermal Conductivity
Not Available   
16.40 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
9.90 µm/(m·K)   
40

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
355.90 kJ/mol   
22

Enthalpy of Fusion
Not Available   
18.70 kJ/mol   
13

Enthalpy of Atomization
Not Available   
398.00 kJ/mol   
20

Standard Molar Entropy
Not Available   
51.00 J/mol.K   
30

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