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Rutherfordium vs Ytterbium


Ytterbium vs Rutherfordium


Periodic Table

Symbol
Rf   
Yb   

Group Number
4   
14
Not Available   

Period Number
7   
6   

Block
d block   
f block   

Element Family
Transition Metal   
Lanthanide   

CAS Number
53850365   
13
7440644   
26

Space Group Name
Not Available   
Fm_ 3m   

Space Group Number
Not Available   
225.00   
2

Facts

Interesting Facts
  • Rutherfordium does not occur in nature as it is a synthetic element.
  • Till date Rutherfordium metal has 15 radioisotopes created synthetically.
  
  • Ytterbium metal oxidizes rapidly if exposed to air.
  • Ytterbium metal can dissolve quickly in Mineral acid.
  

Sources
Bombarding Plutonium with Accelerated 113 to 115 MeV Neon Ions, Synthetically Produced   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Joint Institute for Nuclear Research   
Jean Charles Galissard de Marignac   

Discovery
In 1964   
In 1878   

Abundance
  
  

Abundance In Universe
Not Available   
2 * 10-7 %   
22

Abundance In Sun
~-9999 %   
~0.0000001 %   
26

Abundance In Meteorites
Not Available   
0.00 %   
36

Abundance In Earth's Crust
Not Available   
0.00 %   
33

Abundance In Oceans
Not Available   
0.00 %   
37

Uses

Uses & Benefits
  • Currently known uses of Rutherfordium metal are limited to research purpose only.
  
  • 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.
  

Industrial Uses
NA   
Automobile Industry, Chemical Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys, Research Purposes   
Alloys   

Biological Properties
  
  

Toxicity
Unknown   
Highly Toxic   

Present in Human Body
No   
No   

In Blood
0.00 Blood/mg dm-3   
37
Not Available   

In Bone
0.00 p.p.m.   
36
Not Available   

Physical Properties

Melting Point
2,100.00 °C   
11
824.00 °C   
99+

Boiling Point
5,500.00 °C   
3
1,196.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Unknown   
Silvery White   

Luster
Unknown Luster   
Metallic   

Hardness
  
  

Brinell Hardness
Not Available   
343.00 MPa   
31

Vickers Hardness
Not Available   
206.00 MPa   
33

Speed of Sound
Not Available   
1,590.00 m/s   
99+

Optical Properties
  
  

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
Rf   
Yb   

Isotopes
  
  

Known Isotopes
13   
26
30   
9

Electronegativity
  
  

Allred Rochow Electronegativity
Not Available   
1.06   
33

Electropositivity
  
  

Ionization Energies
  
  

1st Energy Level
579.90 kJ/mol   
99+
603.40 kJ/mol   
99+

2nd Energy Level
1,389.40 kJ/mol   
99+
1,174.80 kJ/mol   
99+

3rd Energy Level
2,296.40 kJ/mol   
99+
2,417.00 kJ/mol   
99+

4th Energy Level
3,077.90 kJ/mol   
99+
4,203.00 kJ/mol   
31

Electrochemical Equivalent
Not Available   
2.15 g/amp-hr   
25

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Solubility   

Atomic Properties

Atomic Number
104   
14
70   
99+

Electron Configuration
[Rn] 5f14 6d2 7s2   
[Xe] 4f14 6s2   

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

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Ytterbium.jpg#100   

Atom
  
  

Number of Protons
104   
14
70   
99+

Number of Neutrons
157   
7
103   
31

Number of Electrons
104   
14
70   
99+

Radius of an Atom
  
  

Atomic Radius
150.00 pm   
33
176.00 pm   
18

Covalent Radius
157.00 pm   
31
187.00 pm   
20

Van der Waals Radius
Not Available   
242.00 pm   
12

Atomic Weight
267.00 amu   
11
173.05 amu   
99+

Atomic Volume
Not Available   
24.79 cm3/mol   
9

Adjacent Atomic Numbers
  
  

Previous Element
Lawrencium
  
Thulium
  

Next Element
Dubnium
  
Lutetium
  

Valence Electron Potential
Not Available   
50.30 (-eV)   
27

Lattice Constant
Not Available   
548.47 pm   
11

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
23.20 g/cm3   
8
6.90 g/cm3   
99+

Density When Liquid (at m.p.)
Not Available   
6.21 g/cm3   
99+

Tensile Strength
Not Available   
58.00 MPa   
18

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Shear Modulus
Not Available   
9.90 GPa   
99+

Bulk Modulus
Not Available   
30.50 GPa   
39

Young's Modulus
Not Available   
23.90 GPa   
99+

Poisson Ratio
Not Available   
0.21   
33

Other Mechanical Properties
Unknown   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
Not Available   
6.97   
99+

Magnetic Ordering
Unknown   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Conductor   

Resistivity
Not Available   
0.25 nΩ·m   
99+

Electrical Conductivity
Not Available   
0.04 106/cm Ω   
38

Electron Affinity
Not Available   
50.00 kJ/mol   
21

Thermal Properties

Specific Heat
Not Available   
0.15 J/(kg K)   
36

Molar Heat Capacity
Not Available   
26.74 J/mol·K   
25

Thermal Conductivity
Not Available   
38.50 W/m·K   
35

Critical Temperature
Not Available   
26.30 K   
7

Thermal Expansion
Not Available   
26.30 µm/(m·K)   
14

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
128.90 kJ/mol   
99+

Enthalpy of Fusion
Not Available   
7.66 kJ/mol   
99+

Enthalpy of Atomization
Not Available   
180.00 kJ/mol   
99+

Standard Molar Entropy
Not Available   
59.90 J/mol.K   
21

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