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Properties of Rutherfordium and Actinium

Rutherfordium
Actinium
Properties of Actinium & Rutherfordium


Physical Properties
Melting Point
2,100.00 °C   
11
1,227.00 °C   
38
Boiling Point
5,500.00 °C   
3
3,200.00 °C   
26
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
Rf   
Ac   
Isotopes
  
  
Known Isotopes
13   
26
29   
10
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.10   
99+
Sanderson Electronegativity
Not Available   
Not Available   
Allred Rochow Electronegativity
Not Available   
1.00   
36
Mulliken-Jaffe Electronegativity
Not Available   
Not Available   
Allen Electronegativity
Not Available   
Not Available   
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.90   
10
Ionization Energies
  
  
1st Energy Level
579.90 kJ/mol   
99+
499.00 kJ/mol   
99+
2nd Energy Level
1,389.40 kJ/mol   
99+
1,170.00 kJ/mol   
99+
3rd Energy Level
2,296.40 kJ/mol   
99+
1,900.00 kJ/mol   
99+
Electrochemical Equivalent
Not Available   
2.82 g/amp-hr   
18
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, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
Mechanical Properties
Density
  
  
Density At Room Temperature
23.20 g/cm3   
8
10.00 g/cm3   
37
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
Unknown   
NA   
Periodic Table
Symbol
Rf   
Ac   
Group Number
4   
14
Not Available   
Period Number
7   
7   
Block
?
The d-block is on the middle of the periodic table and includes elements from columns 3 through 12. These elements are also known as the transition metals because they show a transitivity in their properties i.e. they show a trend in their properties.d 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
?
What is Transition Metal? All transition metals are placed under the d-block from group number 3 to 12. Transition metals show characteristics like malleability, ductility and are good conductor of electricity.Transition Metal   
?
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
104   
14
89   
29
Atomic Weight
267.00 amu   
11
227.00 amu   
25
Atomic Volume
Not Available   
22.54 cm3/mol   
11
Electron Configuration
[Rn] 5f14 6d2 7s2   
[Rn] 6d1 7s2   
Valence Electron Potential
Not Available   
38.60 (-eV)   
99+
Atom
  
  
Number of Protons
104   
14
89   
29
Number of Neutrons
157   
7
138   
16
Number of Electrons
104   
14
89   
29
Crystal Structure
?
The hexagonal crystal system consists of the 7 point groups such that all their space groups have the hexagonal lattice as underlying lattice. The hexagonal crystal family consists of the 12 point groups such that at least one of their space groups has theHexagonal Close Packed (HCP)   
?
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)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Actinium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
150.00 pm   
33
195.00 pm   
7
Covalent Radius
157.00 pm   
31
Not Available   
Van der Waals Radius
Not Available   
Not Available   
Lattice Constant
Not Available   
567.00 pm   
8
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Dubnium
  
Thorium
  
Previous Element
Lawrencium
  
Radium
  
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   
10.07   
28
Magnetic Ordering
Unknown   
?
Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
Not Available   
0.12 J/(kg K)   
40
Thermal Conductivity
Not Available   
12.00 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
27.20 J/mol·K   
18
Thermal Expansion
Not Available   
Not Available   
Standard Molar Entropy
Not Available   
56.50 J/mol.K   
25
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
Not Available   
Enthalpy of Fusion
Not Available   
Not Available   
Enthalpy of Atomization
Not Available   
301.00 kJ/mol   
36
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