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Ytterbium vs Cadmium

Ytterbium
Cadmium
Cadmium vs Ytterbium


Periodic Table
Symbol
Yb  
Cd  
Group Number
3  
15
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  
3
194.00  
7
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
0.00 %  
23
0.00 %  
23
Abundance In Sun
0.00 %  
26
0.00 %  
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
0.00 %  
24
0.00 %  
12
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
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Highly Toxic  
Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.01 Blood/mg dm-3  
24
In Bone
2.10 p.p.m.  
15
1.80 p.p.m.  
16
Physical
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
1.00  
22
2.00  
17
Brinell Hardness
343.00 MPa  
37
203.00 MPa  
99+
Vickers Hardness
206.00 MPa  
99+
90.00 MPa  
99+
Speed of Sound
1,590.00 m/s  
99+
2,310.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.60  
33
1.71  
26
Reflectivity
30.00 %  
35
67.00 %  
16
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Yb  
Cd  
Isotopes
  
  
Known Isotopes
30  
9
34  
5
Electronegativity
  
  
Pauling Electronegativity
1.10  
99+
1.69  
18
Sanderson Electronegativity
1.10  
38
1.98  
11
Allred Rochow Electronegativity
1.06  
34
1.46  
16
Mulliken-Jaffe Electronegativity
1.10  
99+
1.53  
25
Allen Electronegativity
1.10  
99+
1.52  
30
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
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  
33
3rd Energy Level
2,417.00 kJ/mol  
99+
3,616.00 kJ/mol  
13
4th Energy Level
4,203.00 kJ/mol  
99+
867.80 kJ/mol  
99+
5th Energy Level
6,150.00 kJ/mol  
99+
4,040.00 kJ/mol  
99+
6th Energy Level
6,030.00 kJ/mol  
99+
8,640.00 kJ/mol  
28
7th Energy level
6,150.00 kJ/mol  
99+
8,640.00 kJ/mol  
24
8th Energy Level
6,034.00 kJ/mol  
99+
8,640.00 kJ/mol  
24
9th Energy Level
6,150.00 kJ/mol  
99+
8,670.00 kJ/mol  
22
10th Energy Level
6,150.00 kJ/mol  
99+
8,650.00 kJ/mol  
25
11th Energy Level
6,150.00 kJ/mol  
99+
8,670.00 kJ/mol  
22
12th Energy Level
6,030.00 kJ/mol  
99+
86,400.00 kJ/mol  
3
13th Energy Level
6,030.00 kJ/mol  
99+
8,640.00 kJ/mol  
17
14th Energy Level
6,030.00 kJ/mol  
31
8,650.00 kJ/mol  
15
15th Energy Level
60,300.00 kJ/mol  
99+
86,400.00 kJ/mol  
10
16th Energy Level
60,300.00 kJ/mol  
32
86,400.00 kJ/mol  
10
17th Energy Level
603.40 kJ/mol  
99+
864.90 kJ/mol  
28
18th Energy Level
6,110.00 kJ/mol  
99+
8,670.00 kJ/mol  
17
19th Energy Level
603.00 kJ/mol  
99+
867.80 kJ/mol  
26
20th Energy Level
615.00 kJ/mol  
99+
865.00 kJ/mol  
16
21st Energy Level
603.40 kJ/mol  
99+
8,670.00 kJ/mol  
10
22nd Energy Level
603.00 kJ/mol  
99+
864.00 kJ/mol  
14
23rd Energy Level
603.40 kJ/mol  
99+
864.90 kJ/mol  
40
24th Energy Level
603.40 kJ/mol  
99+
864.90 kJ/mol  
10
25th Energy Level
603.40 kJ/mol  
99+
864.00 kJ/mol  
8
26th Energy Level
603.40 kJ/mol  
99+
864.90 kJ/mol  
8
27th Energy Level
603.40 kJ/mol  
99+
864.90 kJ/mol  
8
28th Energy Level
603.40 kJ/mol  
99+
864.90 kJ/mol  
11
29th Energy Level
603.40 kJ/mol  
99+
864.90 kJ/mol  
12
30th Energy Level
603.40 kJ/mol  
99+
864.00 kJ/mol  
8
Electrochemical Equivalent
2.15 g/amp-hr  
29
2.10 g/amp-hr  
31
Electron Work Function
3.20 eV  
99+
4.22 eV  
29
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
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  
32
64  
99+
Number of Electrons
70  
99+
48  
99+
Radius of an Atom
  
  
Atomic Radius
176.00 pm  
20
151.00 pm  
34
Covalent Radius
187.00 pm  
20
144.00 pm  
99+
Van der Waals Radius
242.00 pm  
16
158.00 pm  
99+
Atomic Weight
173.05 amu  
99+
112.41 amu  
99+
Atomic Volume
24.79 cm3/mol  
13
13.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Thulium
  
Silver
  
Next Element
Lutetium
  
Indium
  
Valence Electron Potential
50.30 (-eV)  
28
30.00 (-eV)  
99+
Lattice Constant
548.47 pm  
12
297.94 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.61  
20
1.89  
2
Mechanical
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  
99+
Tensile Strength
58.00 MPa  
36
62.00 MPa  
34
Viscosity
0.00  
20
0.00  
13
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
9.90 GPa  
99+
19.00 GPa  
99+
Bulk Modulus
30.50 GPa  
99+
42.00 GPa  
34
Young's Modulus
23.90 GPa  
99+
50.00 GPa  
39
Poisson Ratio
0.21  
34
0.30  
14
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
6.97  
99+
8.65  
99+
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
13
0.00 H/m  
10
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Semiconductor  
Resistivity
0.25 nΩ·m  
99+
72.70 nΩ·m  
36
Electrical Conductivity
0.04 106/cm Ω  
99+
0.14 106/cm Ω  
17
Electron Affinity
50.00 kJ/mol  
26
0.00 kJ/mol  
99+
Thermal
Specific Heat
0.15 J/(kg K)  
37
0.23 J/(kg K)  
26
Molar Heat Capacity
26.74 J/mol·K  
32
26.02 J/mol·K  
40
Thermal Conductivity
38.50 W/m·K  
35
96.60 W/m·K  
16
Critical Temperature
26.30 K  
99+
594.00 K  
99+
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  
26
51.80 J/mol.K  
38
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