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Rutherfordium vs Bohrium


Bohrium vs Rutherfordium


Periodic Table

Symbol
Rf   
Bh   

Group Number
4   
14
7   
11

Period Number
7   
7   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
53850365   
13
54037148   
12

Space Group Name
Not Available   
Not Available   

Space Group Number
Not Available   
Not Available   

Facts

Interesting Facts
  • Rutherfordium does not occur in nature as it is a synthetic element.
  • Till date Rutherfordium metal has 15 radioisotopes created synthetically.
  
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  

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

History
  
  

Who Discovered
Joint Institute for Nuclear Research   
Gesellschaft für Schwerionenforschung   

Discovery
In 1964   
In 1981   

Abundance
  
  

Uses

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

Industrial Uses
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys, Research Purposes   
Research Purposes   

Biological Properties
  
  

Present in Human Body
No   
No   

In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
37

In Bone
0.00 p.p.m.   
36
0.00 p.p.m.   
36

Physical Properties

Melting Point
2,100.00 °C   
11
Not Available   

Boiling Point
5,500.00 °C   
3
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Luster
Unknown Luster   
Unknown Luster   

Hardness
  
  

Speed of Sound
Not Available   
Not Available   

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   
Bh   

Isotopes
  
  

Known Isotopes
13   
26
5   
32

Electronegativity
  
  

Electropositivity
  
  

Ionization Energies
  
  

1st Energy Level
579.90 kJ/mol   
99+
742.90 kJ/mol   
23

2nd Energy Level
1,389.40 kJ/mol   
99+
1,688.50 kJ/mol   
30

3rd Energy Level
2,296.40 kJ/mol   
99+
2,566.50 kJ/mol   
99+

4th Energy Level
3,077.90 kJ/mol   
99+
3,598.90 kJ/mol   
99+

5th Energy Level
Not Available   
4,727.80 kJ/mol   
37

6th Energy Level
Not Available   
5,991.70 kJ/mol   
24

7th Energy level
Not Available   
7,226.80 kJ/mol   
22

Electrochemical Equivalent
Not Available   
Not Available   

Electron Work Function
Not Available   
Not Available   

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

Atomic Properties

Atomic Number
104   
14
107   
11

Electron Configuration
[Rn] 5f14 6d2 7s2   
[Rn] 5f14 6d5 7s2   

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

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
104   
14
107   
11

Number of Neutrons
157   
7
155   
8

Number of Electrons
104   
14
107   
11

Radius of an Atom
  
  

Atomic Radius
150.00 pm   
33
128.00 pm   
99+

Covalent Radius
157.00 pm   
31
141.00 pm   
99+

Atomic Weight
267.00 amu   
11
270.00 amu   
8

Atomic Volume
Not Available   
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Lawrencium
  
Seaborgium
  

Next Element
Dubnium
  
Hassium
  

Valence Electron Potential
Not Available   
Not Available   

Lattice Constant
Not Available   
Not Available   

Lattice Angles
NA   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
23.20 g/cm3   
8
37.10 g/cm3   
3

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Poisson Ratio
Not Available   
Not Available   

Other Mechanical Properties
Unknown   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Electrical Properties
  
  

Thermal Properties

Specific Heat
Not Available   
Not Available   

Molar Heat Capacity
Not Available   
Not Available   

Thermal Conductivity
Not Available   
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
Not Available   

Enthalpy
  
  

Standard Molar Entropy
Not Available   
Not Available   

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