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Bohrium Darmstadtium Comparison


Darmstadtium Bohrium comparison


Periodic Table

Symbol
Bh   
Ds   

Group Number
7   
11
10   
8

Period Number
7   
7   

Block
d block   
d block   

Element Family
Transition Metal   
Probably Transition   

CAS Number
54037148   
12
54083771   
8

Space Group Name
Not Available   
Not Available   

Space Group Number
Not Available   
Not Available   

Facts

Interesting Facts
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Not Available   

Sources
Found in Minerals, Mining, Synthetically Produced   
Synthetically Produced   

History
  
  

Who Discovered
Gesellschaft für Schwerionenforschung   
Gesellschaft für Schwerionenforschung   

Discovery
In 1981   
In 1994   

Abundance
  
  

Uses

Uses & Benefits
  • Currently known uses of Bohrium metal are limited to research purpose only.
  
  • Currently known uses of Darmstadtium metal are limited to research purpose only. As only few atoms of this metal are produced.
  

Industrial Uses
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
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
Not Available   
Not Available   

Boiling Point
Not Available   
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Luster
Unknown Luster   
Unknown Luster   

Hardness
  
  

Speed of Sound
Not Available   
5,090.00 m/s   
9

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
Bh   
Ds   

Isotopes
  
  

Known Isotopes
5   
32
9   
29

Electronegativity
  
  

Electropositivity
  
  

Ionization Energies
  
  

1st Energy Level
742.90 kJ/mol   
23
955.20 kJ/mol   
5

2nd Energy Level
1,688.50 kJ/mol   
30
1,891.10 kJ/mol   
16

3rd Energy Level
2,566.50 kJ/mol   
99+
3,029.60 kJ/mol   
25

4th Energy Level
3,598.90 kJ/mol   
99+
3,955.90 kJ/mol   
40

5th Energy Level
4,727.80 kJ/mol   
37
5,113.70 kJ/mol   
33

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

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

Electrochemical Equivalent
Not Available   
Not Available   

Electron Work Function
Not Available   
Not Available   

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

Atomic Properties

Atomic Number
107   
11
110   
8

Electron Configuration
[Rn] 5f14 6d5 7s2   
[Rn] 5f14 6d8 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   

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

Atom
  
  

Number of Protons
107   
11
110   
8

Number of Neutrons
155   
8
161   
3

Number of Electrons
107   
11
110   
8

Radius of an Atom
  
  

Atomic Radius
128.00 pm   
99+
132.00 pm   
99+

Covalent Radius
141.00 pm   
99+
128.00 pm   
99+

Atomic Weight
270.00 amu   
8
281.00 amu   
6

Atomic Volume
Not Available   
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Seaborgium
  
Meitnerium
  

Next Element
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
37.10 g/cm3   
3
Not Available   

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   

Summary >>
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