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Ytterbium vs Cadmium


Cadmium vs Ytterbium


Periodic Table

Symbol
Yb   
Cd   

Group Number
Not Available   
12   
6

Period Number
6   
5   

Block
f block   
d block   

Element Family
Lanthanide   
Transition Metal   

CAS Number
7440644   
26
7440439   
99+

Space Group Name
Fm_ 3m   
P63/mmc   

Space Group Number
225.00   
2
194.00   
5

Facts

Interesting Facts
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
  
  • 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
Jean Charles Galissard de Marignac   
Karl Samuel Leberecht Hermann and Friedrich Stromeyer   

Discovery
In 1878   
In 1817   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
2 * 10-7 %   
22

Abundance In Sun
~0.0000001 %   
26
~0.0000006 %   
21

Abundance In Meteorites
0.00 %   
36
0.00 %   
31

Abundance In Earth's Crust
0.00 %   
33
0.00 %   
99+

Abundance In Oceans
0.00 %   
37
0.00 %   
28

Abundance In Humans
Not Available   
0.00 %   
11

Uses

Uses & Benefits
  • Ytterbium metal is used in memory devices and tuneable laser.
  • It is also used as industrial catalyst as the other catalysts are too toxic and polluting.
  
  • 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
Automobile Industry, Chemical Industry   
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Highly 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
824.00 °C   
99+
320.90 °C   
99+

Boiling Point
1,196.00 °C   
99+
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
343.00 MPa   
31
203.00 MPa   
39

Vickers Hardness
206.00 MPa   
33
Not Available   

Speed of Sound
1,590.00 m/s   
99+
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
Yb   
Cd   

Isotopes
  
  

Known Isotopes
30   
9
34   
5

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.69   
17

Sanderson Electronegativity
Not Available   
1.98   
9

Allred Rochow Electronegativity
1.06   
33
1.46   
15

Mulliken-Jaffe Electronegativity
Not Available   
1.53   
13

Allen Electronegativity
Not Available   
1.52   
27

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.31   
37

Ionization Energies
  
  

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

2nd Energy Level
1,174.80 kJ/mol   
99+
1,631.40 kJ/mol   
32

3rd Energy Level
2,417.00 kJ/mol   
99+
3,616.00 kJ/mol   
13

4th Energy Level
4,203.00 kJ/mol   
31
Not Available   

Electrochemical Equivalent
2.15 g/amp-hr   
25
2.10 g/amp-hr   
27

Electron Work Function
Not Available   
4.22 eV   
22

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

Atomic Properties

Atomic Number
70   
99+
48   
99+

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

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Ytterbium.jpg#100   
HCP-Crystal-Structure-of-Cadmium.jpg#100   

Atom
  
  

Number of Protons
70   
99+
48   
99+

Number of Neutrons
103   
31
64   
99+

Number of Electrons
70   
99+
48   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
151.00 pm   
32

Covalent Radius
187.00 pm   
20
144.00 pm   
40

Van der Waals Radius
242.00 pm   
12
158.00 pm   
99+

Atomic Weight
173.05 amu   
99+
112.41 amu   
99+

Atomic Volume
24.79 cm3/mol   
9
13.10 cm3/mol   
39

Adjacent Atomic Numbers
  
  

Previous Element
Thulium
  
Silver
  

Next Element
Lutetium
  
Indium
  

Valence Electron Potential
50.30 (-eV)   
27
30.00 (-eV)   
99+

Lattice Constant
548.47 pm   
11
297.94 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.89   
1

Mechanical Properties

Density
  
  

Density At Room Temperature
6.90 g/cm3   
99+
8.65 g/cm3   
99+

Density When Liquid (at m.p.)
6.21 g/cm3   
99+
8.00 g/cm3   
28

Tensile Strength
58.00 MPa   
18
62.00 MPa   
16

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Shear Modulus
9.90 GPa   
99+
19.00 GPa   
35

Bulk Modulus
30.50 GPa   
39
42.00 GPa   
29

Young's Modulus
23.90 GPa   
99+
50.00 GPa   
36

Poisson Ratio
0.21   
33
0.30   
14

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
6.97   
99+
8.65   
36

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Semiconductor   

Resistivity
0.25 nΩ·m   
99+
72.70 nΩ·m   
36

Electrical Conductivity
0.04 106/cm Ω   
38
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
26.74 J/mol·K   
25
26.02 J/mol·K   
32

Thermal Conductivity
38.50 W/m·K   
35
96.60 W/m·K   
16

Critical Temperature
26.30 K   
7
Not Available   

Thermal Expansion
26.30 µm/(m·K)   
14
30.80 µm/(m·K)   
10

Enthalpy
  
  

Enthalpy of Vaporization
128.90 kJ/mol   
99+
100.00 kJ/mol   
99+

Enthalpy of Fusion
7.66 kJ/mol   
99+
6.19 kJ/mol   
99+

Enthalpy of Atomization
180.00 kJ/mol   
99+
113.00 kJ/mol   
99+

Standard Molar Entropy
59.90 J/mol.K   
21
51.80 J/mol.K   
27

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