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Cadmium vs Lutetium


Lutetium vs Cadmium


Periodic Table

Symbol
Cd   
Lu   

Group Number
12   
6
Not Available   

Period Number
5   
6   

Block
d block   
f block   

Element Family
Transition Metal   
Lanthanide   

CAS Number
7440439   
99+
7439943   
99+

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • 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.
  
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  

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

History
  
  

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

Discovery
In 1817   
In 1906   

Abundance
  
  

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

Abundance In Sun
~0.0000006 %   
21
~0.0000001 %   
26

Abundance In Meteorites
0.00 %   
31
0.00 %   
99+

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

Abundance In Oceans
0.00 %   
28
0.00 %   
99+

Abundance In Humans
0.00 %   
11
Not Available   

Uses

Uses & Benefits
  • 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.
  
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  

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

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Low Toxic   

Present in Human Body
Yes   
No   

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

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

Physical Properties

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

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

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Bluish-Gray   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
2.00   
16
Not Available   

Brinell Hardness
203.00 MPa   
39
893.00 MPa   
10

Vickers Hardness
Not Available   
1,160.00 MPa   
8

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

Optical Properties
  
  

Reflectivity
67.00 %   
11
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
Cd   
Lu   

Isotopes
  
  

Known Isotopes
34   
5
35   
4

Electronegativity
  
  

Pauling Electronegativity
1.69   
17
1.27   
34

Sanderson Electronegativity
1.98   
9
Not Available   

Allred Rochow Electronegativity
1.46   
15
1.14   
28

Mulliken-Jaffe Electronegativity
1.53   
13
Not Available   

Allen Electronegativity
1.52   
27
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.31   
37
2.73   
20

Ionization Energies
  
  

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

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

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

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

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

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

Electron Work Function
4.22 eV   
22
3.30 eV   
33

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

Atomic Properties

Atomic Number
48   
99+
71   
99+

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

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

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

Atom
  
  

Number of Protons
48   
99+
71   
99+

Number of Neutrons
64   
99+
104   
30

Number of Electrons
48   
99+
71   
99+

Radius of an Atom
  
  

Atomic Radius
151.00 pm   
32
174.00 pm   
20

Covalent Radius
144.00 pm   
40
187.00 pm   
20

Van der Waals Radius
158.00 pm   
99+
221.00 pm   
22

Atomic Weight
112.41 amu   
99+
174.97 amu   
40

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

Adjacent Atomic Numbers
  
  

Previous Element
Silver
  
Ytterbium
  

Next Element
Indium
  
Hafnium
  

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

Lattice Constant
297.94 pm   
99+
350.31 pm   
99+

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

Lattice C/A Ratio
1.89   
1
1.59   
10

Mechanical Properties

Density
  
  

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

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

Tensile Strength
62.00 MPa   
16
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
19.00 GPa   
35
27.20 GPa   
26

Bulk Modulus
42.00 GPa   
29
47.60 GPa   
23

Young's Modulus
50.00 GPa   
36
68.60 GPa   
30

Poisson Ratio
0.30   
14
0.26   
21

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
8.65   
36
9.84   
29

Magnetic Ordering
Diamagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Conductor   

Resistivity
72.70 nΩ·m   
36
582.00 nΩ·m   
9

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

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

Thermal Properties

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

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

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

Critical Temperature
Not Available   
Not Available   

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

Enthalpy
  
  

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

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

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

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

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