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Lutetium vs Cadmium


Cadmium vs Lutetium


Periodic Table

Symbol
Lu   
Cd   

Group Number
Not Available   
12   
6

Period Number
6   
5   

Block
f block   
d block   

Element Family
Lanthanide   
Transition Metal   

CAS Number
7439943   
99+
7440439   
99+

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  
  • Naturally occurring minor elements include Cadmium.
  • Cadmium is released into atmosphere to control volcanic eruption and forest fires.
  • It is used for electroplating of Steel for corrosion resistance.
  • It can absorb neutrons and used in nuclear reactor to control atomic fission.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Found As a By-product, Found in Minerals, Mining   

History
  
  

Who Discovered
Georges Urbain and Carl Auer von Welsbach   
Karl Samuel Leberecht Hermann and Friedrich Stromeyer   

Discovery
In 1906   
In 1817   

Abundance
  
  

Abundance In Universe
1 * 10-8 %   
30
2 * 10-7 %   
22

Abundance In Sun
~0.0000001 %   
26
~0.0000006 %   
21

Abundance In Meteorites
0.00 %   
99+
0.00 %   
31

Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
99+

Abundance In Oceans
0.00 %   
99+
0.00 %   
28

Abundance In Humans
Not Available   
0.00 %   
11

Uses

Uses & Benefits
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  
  • It has very limited uses as it is a toxic metal and it can cause birth defects, cancer, etc.
  • Almost 80% of Cadmium metal is used in Nickel cadmium Batteries and now it is getting replaced with nickel hydride.
  

Industrial Uses
NA   
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Low Toxic   
Toxic   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.01 Blood/mg dm-3   
24

In Bone
Not Available   
1.80 p.p.m.   
15

Physical Properties

Melting Point
1,652.00 °C   
19
320.90 °C   
99+

Boiling Point
3,402.00 °C   
19
765.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery Bluish-Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
2.00   
16

Brinell Hardness
893.00 MPa   
10
203.00 MPa   
39

Vickers Hardness
1,160.00 MPa   
8
Not Available   

Speed of Sound
Not Available   
2,310.00 m/s   
39

Optical Properties
  
  

Reflectivity
Not Available   
67.00 %   
11

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
Lu   
Cd   

Isotopes
  
  

Known Isotopes
35   
4
34   
5

Electronegativity
  
  

Pauling Electronegativity
1.27   
34
1.69   
17

Sanderson Electronegativity
Not Available   
1.98   
9

Allred Rochow Electronegativity
1.14   
28
1.46   
15

Mulliken-Jaffe Electronegativity
Not Available   
1.53   
13

Allen Electronegativity
Not Available   
1.52   
27

Electropositivity
  
  

Pauling Electropositivity
2.73   
20
2.31   
37

Ionization Energies
  
  

1st Energy Level
523.50 kJ/mol   
99+
867.80 kJ/mol   
11

2nd Energy Level
1,340.00 kJ/mol   
99+
1,631.40 kJ/mol   
32

3rd Energy Level
2,022.30 kJ/mol   
99+
3,616.00 kJ/mol   
13

4th Energy Level
4,370.00 kJ/mol   
28
Not Available   

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

Electrochemical Equivalent
2.18 g/amp-hr   
23
2.10 g/amp-hr   
27

Electron Work Function
3.30 eV   
33
4.22 eV   
22

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

Atomic Properties

Atomic Number
71   
99+
48   
99+

Electron Configuration
[Xe] 6s2 4f14 5d1   
[Kr] 4d10 5s2   

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

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Cadmium.jpg#100   

Atom
  
  

Number of Protons
71   
99+
48   
99+

Number of Neutrons
104   
30
64   
99+

Number of Electrons
71   
99+
48   
99+

Radius of an Atom
  
  

Atomic Radius
174.00 pm   
20
151.00 pm   
32

Covalent Radius
187.00 pm   
20
144.00 pm   
40

Van der Waals Radius
221.00 pm   
22
158.00 pm   
99+

Atomic Weight
174.97 amu   
40
112.41 amu   
99+

Atomic Volume
17.78 cm3/mol   
30
13.10 cm3/mol   
39

Adjacent Atomic Numbers
  
  

Previous Element
Ytterbium
  
Silver
  

Next Element
Hafnium
  
Indium
  

Valence Electron Potential
50.90 (-eV)   
26
30.00 (-eV)   
99+

Lattice Constant
350.31 pm   
99+
297.94 pm   
99+

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

Lattice C/A Ratio
1.59   
10
1.89   
1

Mechanical Properties

Density
  
  

Density At Room Temperature
9.84 g/cm3   
38
8.65 g/cm3   
99+

Density When Liquid (at m.p.)
9.30 g/cm3   
22
8.00 g/cm3   
28

Tensile Strength
Not Available   
62.00 MPa   
16

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

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

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

Elasticity properties
  
  

Shear Modulus
27.20 GPa   
26
19.00 GPa   
35

Bulk Modulus
47.60 GPa   
23
42.00 GPa   
29

Young's Modulus
68.60 GPa   
30
50.00 GPa   
36

Poisson Ratio
0.26   
21
0.30   
14

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
9.84   
29
8.65   
36

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Semiconductor   

Resistivity
582.00 nΩ·m   
9
72.70 nΩ·m   
36

Electrical Conductivity
0.02 106/cm Ω   
99+
0.14 106/cm Ω   
15

Electron Affinity
50.00 kJ/mol   
21
0.00 kJ/mol   
40

Thermal Properties

Specific Heat
0.15 J/(kg K)   
36
0.23 J/(kg K)   
26

Molar Heat Capacity
26.86 J/mol·K   
24
26.02 J/mol·K   
32

Thermal Conductivity
16.40 W/m·K   
99+
96.60 W/m·K   
16

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
9.90 µm/(m·K)   
40
30.80 µm/(m·K)   
10

Enthalpy
  
  

Enthalpy of Vaporization
355.90 kJ/mol   
22
100.00 kJ/mol   
99+

Enthalpy of Fusion
18.70 kJ/mol   
13
6.19 kJ/mol   
99+

Enthalpy of Atomization
398.00 kJ/mol   
20
113.00 kJ/mol   
99+

Standard Molar Entropy
51.00 J/mol.K   
30
51.80 J/mol.K   
27

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