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Einsteinium vs Darmstadtium

Einsteinium
Darmstadtium
Darmstadtium vs Einsteinium


Periodic Table
Symbol
Es   
Ds   
Group Number
Not Available   
10   
8
Period Number
7   
7   
Block
f block   
d block   
Element Family
Actinide   
Probably Transition   
CAS Number
7429927   
99+
54083771   
8
Space Group Name
Not Available   
Not Available   
Space Group Number
Not Available   
Not Available   
Facts
Interesting Facts
  • Einsteinium is the transuranic element found in US.
  • Only 0.01 mg of Einsteinium was synthesized in 1961.
  
Not Available   
Sources
Made by Bombarding Uranium with Neutrons   
Synthetically Produced   
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory   
Gesellschaft für Schwerionenforschung   
Discovery
In 1952   
In 1994   
Abundance
  
  
Uses
Uses & Benefits
  • Currently known uses of Einsteinium 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
Alloys, Nuclear Research, Research Purposes   
Research Purposes   
Biological Properties
  
  
Toxicity
Toxic   
Unknown   
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
860.00 °C   
99+
Not Available   
Boiling Point
996.00 °C   
99+
Not Available   
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Unknown   
Luster
NA   
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
Es   
Ds   
Isotopes
  
  
Known Isotopes
16   
23
9   
29
Electronegativity
  
  
Pauling Electronegativity
1.54   
26
Not Available   
Allred Rochow Electronegativity
1.20   
27
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
Not Available   
Ionization Energies
  
  
1st Energy Level
619.00 kJ/mol   
99+
955.20 kJ/mol   
5
2nd Energy Level
1,216.00 kJ/mol   
99+
1,891.10 kJ/mol   
16
3rd Energy Level
2,334.00 kJ/mol   
99+
3,029.60 kJ/mol   
25
4th Energy Level
3,734.00 kJ/mol   
99+
3,955.90 kJ/mol   
40
5th Energy Level
Not Available   
5,113.70 kJ/mol   
33
Electrochemical Equivalent
4.74 g/amp-hr   
5
Not Available   
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
99   
19
110   
8
Electron Configuration
[Rn] 5f11 7s2   
[Rn] 5f14 6d8 7s2   
Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
99   
19
110   
8
Number of Neutrons
153   
9
161   
3
Number of Electrons
99   
19
110   
8
Radius of an Atom
  
  
Atomic Radius
186.00 pm   
9
132.00 pm   
99+
Covalent Radius
Not Available   
128.00 pm   
99+
Atomic Weight
252.00 amu   
16
281.00 amu   
6
Atomic Volume
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Californium
  
Meitnerium
  
Next Element
Fermium
  
Roentgenium
  
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
8.84 g/cm3   
99+
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
NA   
Unknown   
Magnetic Properties
Magnetic Characteristics
  
  
Magnetic Ordering
Paramagnetic   
Unknown   
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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