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Properties of Meitnerium and Radium

Meitnerium
Radium
Properties of Radium & Meitnerium


Physical Properties
Melting Point
Not Available   
700.00 °C   
99+
Boiling Point
Not Available   
1,737.00 °C   
99+
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
Mt   
Ra   
Isotopes
  
  
Known Isotopes
4   
33
33   
6
Electronegativity
  
  
Pauling Electronegativity
Not Available   
0.90   
99+
Sanderson Electronegativity
Not Available   
Not Available   
Allred Rochow Electronegativity
Not Available   
0.97   
38
Mulliken-Jaffe Electronegativity
Not Available   
0.92   
20
Allen Electronegativity
Not Available   
0.89   
99+
Electropositivity
  
  
Pauling Electropositivity
Not Available   
3.10   
5
Ionization Energies
  
  
1st Energy Level
800.80 kJ/mol   
15
509.30 kJ/mol   
99+
2nd Energy Level
1,823.60 kJ/mol   
17
979.00 kJ/mol   
99+
3rd Energy Level
2,904.20 kJ/mol   
31
Not Available   
Electrochemical Equivalent
Not Available   
4.22 g/amp-hr   
6
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
37.40 g/cm3   
2
5.50 g/cm3   
99+
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   
NA   
Periodic Table
Symbol
Mt   
Ra   
Group Number
9   
9
2   
16
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 s-block is on the left side of the periodic table that includes elements from the first two columns, the alkali metals (group 1) and alkaline earth metals (group 2), plus helium.s block   
Element Family
Probably Transition   
?
All alkaline earth metals are placed under group number 2 and s-block of periodic table. These metals are somewhat reactive at standard conditions. Alkaline earth metals appear shiny, silvery-white and are found in the earth’s crust.Alkaline Earth   
Atomic Properties
Atomic Number
109   
9
88   
30
Atomic Weight
278.00 amu   
7
226.00 amu   
26
Atomic Volume
Not Available   
45.20 cm3/mol   
4
Electron Configuration
[Rn] 5f14 6d7 7s2   
[Rn] 7s2   
Valence Electron Potential
Not Available   
20.10 (-eV)   
99+
Atom
  
  
Number of Protons
109   
9
88   
30
Number of Neutrons
157   
7
138   
16
Number of Electrons
109   
9
88   
30
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)   
?
BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Meitnerium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Radius of an Atom
  
  
Atomic Radius
122.00 pm   
99+
Not Available   
Covalent Radius
129.00 pm   
99+
221.00 pm   
3
Van der Waals Radius
Not Available   
283.00 pm   
4
Lattice Constant
Not Available   
514.80 pm   
13
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Darmstadtium
  
Actinium
  
Previous Element
Hassium
  
Francium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
Not Available   
100.00 nΩ·m   
31
Electrical Conductivity
Not Available   
Not Available   
Electron Affinity
Not Available   
Not Available   
Electrical Property
Unknown   
NA   
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
5.00   
99+
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   
?
Nonmagnetic metals are non magnetic in nature and do not show or exhibit any magnetic properties.Nonmagnetic   
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   
18.60 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
Not Available   
Thermal Expansion
Not Available   
Not Available   
Standard Molar Entropy
Not Available   
71.00 J/mol.K   
14
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
Not Available   
Enthalpy of Fusion
Not Available   
Not Available   
Enthalpy of Atomization
Not Available   
163.00 kJ/mol   
99+
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