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Ytterbium Molybdenum Comparison

Ytterbium
Molybdenum
Molybdenum Ytterbium comparison


Periodic Table
Symbol
Yb   
Mo   
Group Number
Not Available   
6   
12
Period Number
6   
5   
Block
f block   
d block   
Element Family
Lanthanide   
Transition Metal   
CAS Number
7440644   
26
7439987   
99+
Space Group Name
Fm_ 3m   
Im_ 3m   
Space Group Number
225.00   
2
229.00   
1
Facts
Interesting Facts
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
  
  • Molybdenum is highly reactive metal, hence not found free in nature .
  • Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Jean Charles Galissard de Marignac   
Carl Wilhelm Scheele   
Discovery
In 1878   
In 1778   
Abundance
  
  
Abundance In Universe
2 * 10-7 %   
22
5 * 10-7 %   
19
Abundance In Sun
~0.0000001 %   
26
~0.0000009 %   
19
Abundance In Meteorites
0.00 %   
36
0.00 %   
24
Abundance In Earth's Crust
0.00 %   
33
0.00 %   
39
Abundance In Oceans
0.00 %   
37
0.00 %   
9
Abundance In Humans
Not Available   
0.00 %   
14
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.
  
  • Its alloys are used to make engine parts, drills, saw blade, etc.
  • Lubricant additive made up of Molybdenum disulfide is commonly used in the industry. It is also used as a catalyst.
  
Industrial Uses
Automobile Industry, Chemical Industry   
Aerospace 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   
0.00 Blood/mg dm-3   
31
In Bone
Not Available   
0.70 p.p.m.   
18
Physical Properties
Melting Point
824.00 °C   
99+
2,617.00 °C   
5
Boiling Point
1,196.00 °C   
99+
4,612.00 °C   
9
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
Not Available   
5.50   
7
Brinell Hardness
343.00 MPa   
31
1,370.00 MPa   
7
Vickers Hardness
206.00 MPa   
33
1,400.00 MPa   
6
Speed of Sound
1,590.00 m/s   
99+
5,400.00 m/s   
6
Optical Properties
  
  
Reflectivity
Not Available   
58.00 %   
15
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   
Mo   
Isotopes
  
  
Known Isotopes
30   
9
25   
14
Electronegativity
  
  
Pauling Electronegativity
Not Available   
2.16   
5
Sanderson Electronegativity
Not Available   
1.15   
19
Allred Rochow Electronegativity
1.06   
33
1.30   
24
Allen Electronegativity
Not Available   
2.16   
3
Electropositivity
  
  
Pauling Electropositivity
Not Available   
1.84   
99+
Ionization Energies
  
  
1st Energy Level
603.40 kJ/mol   
99+
684.30 kJ/mol   
37
2nd Energy Level
1,174.80 kJ/mol   
99+
1,560.00 kJ/mol   
37
3rd Energy Level
2,417.00 kJ/mol   
99+
2,618.00 kJ/mol   
99+
4th Energy Level
4,203.00 kJ/mol   
31
4,480.00 kJ/mol   
26
5th Energy Level
Not Available   
5,257.00 kJ/mol   
32
6th Energy Level
Not Available   
6,640.80 kJ/mol   
22
7th Energy level
Not Available   
12,125.00 kJ/mol   
13
8th Energy Level
Not Available   
13,860.00 kJ/mol   
16
9th Energy Level
Not Available   
15,835.00 kJ/mol   
16
10th Energy Level
Not Available   
17,980.00 kJ/mol   
18
11th Energy Level
Not Available   
20,190.00 kJ/mol   
17
12th Energy Level
Not Available   
22,219.00 kJ/mol   
15
13th Energy Level
Not Available   
26,930.00 kJ/mol   
13
14th Energy Level
Not Available   
29,196.00 kJ/mol   
13
15th Energy Level
Not Available   
52,490.00 kJ/mol   
7
16th Energy Level
Not Available   
55,000.00 kJ/mol   
8
17th Energy Level
Not Available   
61,400.00 kJ/mol   
9
18th Energy Level
Not Available   
67,700.00 kJ/mol   
9
19th Energy Level
Not Available   
74,000.00 kJ/mol   
9
20th Energy Level
Not Available   
80,400.00 kJ/mol   
10
21st Energy Level
Not Available   
87,000.00 kJ/mol   
9
22nd Energy Level
Not Available   
93,400.00 kJ/mol   
7
23rd Energy Level
Not Available   
98,420.00 kJ/mol   
6
24th Energy Level
Not Available   
104,400.00 kJ/mol   
2
25th Energy Level
Not Available   
121,900.00 kJ/mol   
1
26th Energy Level
Not Available   
127,700.00 kJ/mol   
1
27th Energy Level
Not Available   
133,800.00 kJ/mol   
1
28th Energy Level
Not Available   
139,800.00 kJ/mol   
1
29th Energy Level
Not Available   
148,100.00 kJ/mol   
1
30th Energy Level
Not Available   
154,500.00 kJ/mol   
1
Electrochemical Equivalent
2.15 g/amp-hr   
25
0.89 g/amp-hr   
99+
Electron Work Function
Not Available   
4.60 eV   
12
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
70   
99+
42   
99+
Electron Configuration
[Xe] 4f14 6s2   
[Kr] 4d5 5s1   
Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Ytterbium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
70   
99+
42   
99+
Number of Neutrons
103   
31
54   
99+
Number of Electrons
70   
99+
42   
99+
Radius of an Atom
  
  
Atomic Radius
176.00 pm   
18
139.00 pm   
39
Covalent Radius
187.00 pm   
20
154.00 pm   
32
Van der Waals Radius
242.00 pm   
12
200.00 pm   
28
Atomic Weight
173.05 amu   
99+
95.95 amu   
99+
Atomic Volume
24.79 cm3/mol   
9
9.40 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Thulium
  
Niobium
  
Next Element
Lutetium
  
Technetium
  
Valence Electron Potential
50.30 (-eV)   
27
88.60 (-eV)   
13
Lattice Constant
548.47 pm   
11
314.70 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
6.90 g/cm3   
99+
10.28 g/cm3   
36
Density When Liquid (at m.p.)
6.21 g/cm3   
99+
9.33 g/cm3   
20
Tensile Strength
58.00 MPa   
18
324.00 MPa   
13
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
26
Elasticity properties
  
  
Shear Modulus
9.90 GPa   
99+
126.00 GPa   
8
Bulk Modulus
30.50 GPa   
39
230.00 GPa   
6
Young's Modulus
23.90 GPa   
99+
329.00 GPa   
6
Poisson Ratio
0.21   
33
0.31   
13
Other Mechanical Properties
Ductile, Malleable   
Ductile, Weldable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
6.97   
99+
10.22   
27
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Semiconductor   
Resistivity
0.25 nΩ·m   
99+
53.40 nΩ·m   
99+
Electrical Conductivity
0.04 106/cm Ω   
38
0.19 106/cm Ω   
11
Electron Affinity
50.00 kJ/mol   
21
71.90 kJ/mol   
14
Thermal Properties
Specific Heat
0.15 J/(kg K)   
36
0.25 J/(kg K)   
21
Molar Heat Capacity
26.74 J/mol·K   
25
24.06 J/mol·K   
99+
Thermal Conductivity
38.50 W/m·K   
35
138.00 W/m·K   
12
Critical Temperature
26.30 K   
7
Not Available   
Thermal Expansion
26.30 µm/(m·K)   
14
4.80 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
128.90 kJ/mol   
99+
594.10 kJ/mol   
8
Enthalpy of Fusion
7.66 kJ/mol   
99+
27.61 kJ/mol   
5
Enthalpy of Atomization
180.00 kJ/mol   
99+
653.00 kJ/mol   
7
Standard Molar Entropy
59.90 J/mol.K   
21
28.70 J/mol.K   
99+
Summary >>
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