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Darmstadtium Mendelevium Comparison

Darmstadtium
Mendelevium
Mendelevium Darmstadtium comparison


Periodic Table
Symbol
Ds   
Md   
Group Number
10   
8
Not Available   
Period Number
7   
7   
Block
d block   
f block   
Element Family
Probably Transition   
Actinide   
CAS Number
54083771   
8
7440111   
99+
Space Group Name
Not Available   
Not Available   
Space Group Number
Not Available   
Not Available   
Facts
Interesting Facts
Not Available   
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  
Sources
Synthetically Produced   
Bombarding Einsteinium with Helium Ions   
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung   
Lawrence Berkeley National Laboratory   
Discovery
In 1994   
In 1955   
Abundance
  
  
Uses
Uses & Benefits
  • Currently known uses of Darmstadtium metal are limited to research purpose only. As only few atoms of this metal are produced.
  
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  
Industrial Uses
NA   
NA   
Medical Uses
NA   
NA   
Other Uses
Research Purposes   
NA   
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   
827.00 °C   
99+
Boiling Point
Not Available   
Not Available   
Appearance
  
  
Physical State
Solid   
Solid   
Luster
Unknown Luster   
Metallic   
Hardness
  
  
Speed of Sound
5,090.00 m/s   
9
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
Ds   
Md   
Isotopes
  
  
Known Isotopes
9   
29
16   
23
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.30   
32
Allred Rochow Electronegativity
Not Available   
1.20   
27
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.70   
22
Ionization Energies
  
  
1st Energy Level
955.20 kJ/mol   
5
635.00 kJ/mol   
99+
2nd Energy Level
1,891.10 kJ/mol   
16
1,235.00 kJ/mol   
99+
3rd Energy Level
3,029.60 kJ/mol   
25
2,470.00 kJ/mol   
99+
4th Energy Level
3,955.90 kJ/mol   
40
3,840.00 kJ/mol   
99+
5th Energy Level
5,113.70 kJ/mol   
33
Not Available   
Electrochemical Equivalent
Not Available   
3.21 g/amp-hr   
12
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
110   
8
101   
17
Electron Configuration
[Rn] 5f14 6d8 7s2   
[Rn] 5f13 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Not Known   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
Unknown-Crystal-Structure-of-Mendelevium.jpg#100   
Atom
  
  
Number of Protons
110   
8
101   
17
Number of Neutrons
161   
3
157   
7
Number of Electrons
110   
8
101   
17
Radius of an Atom
  
  
Atomic Radius
132.00 pm   
99+
Not Available   
Covalent Radius
128.00 pm   
99+
Not Available   
Van der Waals Radius
Not Available   
246.00 pm   
8
Atomic Weight
281.00 amu   
6
258.00 amu   
14
Atomic Volume
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Meitnerium
  
Fermium
  
Next Element
Roentgenium
  
Nobelium
  
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
  
  
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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