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Properties of Einsteinium and Nobelium

Einsteinium
Nobelium
Properties of Nobelium & Einsteinium


Physical Properties
Melting Point
860.00 °C   
99+
827.00 °C   
99+
Boiling Point
996.00 °C   
99+
Not Available   
Hardness
  
  
Mohs Hardness
Not Available   
Not Available   
Brinell Hardness
Not Available   
Not Available   
Vickers Hardness
Not Available   
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
Not Available   
Speed of Sound
Not Available   
Not Available   
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   
No   
Isotopes
  
  
Known Isotopes
16   
23
13   
26
Electronegativity
  
  
Pauling Electronegativity
1.54   
26
1.30   
32
Sanderson Electronegativity
Not Available   
Not Available   
Allred Rochow Electronegativity
1.20   
27
1.20   
27
Mulliken-Jaffe Electronegativity
Not Available   
Not Available   
Allen Electronegativity
Not Available   
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.70   
22
Ionization Energies
  
  
1st Energy Level
619.00 kJ/mol   
99+
642.00 kJ/mol   
99+
2nd Energy Level
1,216.00 kJ/mol   
99+
1,254.00 kJ/mol   
99+
3rd Energy Level
2,334.00 kJ/mol   
99+
2,643.00 kJ/mol   
99+
Electrochemical Equivalent
4.74 g/amp-hr   
5
4.83 g/amp-hr   
4
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces.Radioactivity   
?
Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
?
Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces.Radioactivity   
Mechanical Properties
Density
  
  
Density At Room Temperature
8.84 g/cm3   
99+
Not Available   
Density When Liquid (at m.p.)
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
Not Available   
Vapor Pressure at 2000 K
Not Available   
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
Not Available   
Not Available   
Bulk Modulus
Not Available   
Not Available   
Young's Modulus
Not Available   
Not Available   
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
NA   
Unknown   
Periodic Table
Symbol
Es   
No   
Group Number
Not Available   
Not Available   
Period Number
7   
7   
Block
?
The f-block is in the center-left of a 32-column periodic table but in the footnoted appendage of 18-column tables. These elements are not generally considered as part of any group. They are often called inner transition metals.f block   
?
The f-block is in the center-left of a 32-column periodic table but in the footnoted appendage of 18-column tables. These elements are not generally considered as part of any group. They are often called inner transition metals.f block   
Element Family
?
Total 15 metals are included in actinide series, from Actinium to Lawrencium. Actinide series is located under f and d block of the periodic table.Actinide   
?
Total 15 metals are included in actinide series, from Actinium to Lawrencium. Actinide series is located under f and d block of the periodic table.Actinide   
Atomic Properties
Atomic Number
99   
19
102   
16
Atomic Weight
252.00 amu   
16
259.00 amu   
13
Atomic Volume
Not Available   
Not Available   
Electron Configuration
[Rn] 5f11 7s2   
[Rn] 5f14 7s2   
Valence Electron Potential
Not Available   
26.00 (-eV)   
99+
Atom
  
  
Number of Protons
99   
19
102   
16
Number of Neutrons
153   
9
157   
7
Number of Electrons
99   
19
102   
16
Crystal Structure
?
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.Face Centered Cubic (FCC)   
?
The crustal structure for this metal is Unknown or not yet discoveredNot Known   
Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
Unknown-Crystal-Structure-of-Nobelium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
186.00 pm   
9
Not Available   
Covalent Radius
Not Available   
Not Available   
Van der Waals Radius
Not Available   
246.00 pm   
8
Lattice Constant
Not Available   
Not Available   
Lattice Angles
NA   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Fermium
  
Lawrencium
  
Previous Element
Californium
  
Mendelevium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
Not Available   
Not Available   
Electrical Conductivity
Not Available   
Not Available   
Electron Affinity
Not Available   
Not Available   
Electrical Property
Unknown   
Unknown   
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
Not Available   
Magnetic Ordering
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
Unknown   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
Not Available   
Not Available   
Thermal Conductivity
Not Available   
Not Available   
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
Not Available   
Thermal Expansion
Not Available   
Not Available   
Standard Molar Entropy
Not Available   
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
Not Available   
Enthalpy of Fusion
Not Available   
Not Available   
Enthalpy of Atomization
Not Available   
Not Available   
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