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Properties of Francium and Vanadium

Francium
Vanadium
Properties of Vanadium & Francium


Physical Properties
Melting Point
27.00 °C   
99+
1,890.00 °C   
13
Boiling Point
677.00 °C   
99+
3,380.00 °C   
20
Hardness
  
  
Mohs Hardness
Not Available   
6.70   
4
Brinell Hardness
Not Available   
600.00 MPa   
20
Vickers Hardness
Not Available   
628.00 MPa   
17
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
61.00 %   
14
Speed of Sound
Not Available   
4,560.00 m/s   
17
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
Fr   
V   
Isotopes
  
  
Known Isotopes
33   
6
22   
17
Electronegativity
  
  
Pauling Electronegativity
0.70   
99+
1.63   
20
Sanderson Electronegativity
Not Available   
1.39   
17
Allred Rochow Electronegativity
0.86   
99+
1.45   
16
Mulliken-Jaffe Electronegativity
0.68   
25
Not Available   
Allen Electronegativity
0.67   
99+
1.53   
26
Electropositivity
  
  
Pauling Electropositivity
3.30   
1
2.37   
34
Ionization Energies
  
  
1st Energy Level
380.00 kJ/mol   
99+
650.90 kJ/mol   
99+
2nd Energy Level
Not Available   
1,414.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,830.00 kJ/mol   
35
Electrochemical Equivalent
8.32 g/amp-hr   
1
0.38 g/amp-hr   
99+
Electron Work Function
Not Available   
4.30 eV   
18
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, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility   
?
Anti-corrosion metals have the protection on their surfaces which protect them from corroding in corrosive environments.Anti Corrosion, 
?
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   
Mechanical Properties
Density
  
  
Density At Room Temperature
1.87 g/cm3   
99+
6.00 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
5.50 g/cm3   
99+
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
Not Available   
Vapor Pressure at 2000 K
Not Available   
0.23 (Pa)   
16
Tensile Strength
Not Available   
800.00 MPa   
6
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
Not Available   
47.00 GPa   
16
Bulk Modulus
Not Available   
160.00 GPa   
11
Young's Modulus
Not Available   
128.00 GPa   
15
Poisson Ratio
Not Available   
0.37   
7
Other Mechanical Properties
NA   
?
Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile, 
?
Malleability of metals defines their ability to deform under compressive stress; this is often characterized by the metals ability to form a thin sheet by hammering or rolling.Malleable   
Periodic Table
Symbol
Fr   
V   
Group Number
1   
17
5   
13
Period Number
7   
4   
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   
?
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   
Element Family
?
All alkali metals are placed under group number 1 and s-block of periodic table. These metals are highly reactive and are found in ores of other metals and minerals. Alkali metals can be easily distinguished from others as these metals have only 1 electronAlkali   
?
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   
Atomic Properties
Atomic Number
87   
31
23   
99+
Atomic Weight
223.00 amu   
27
50.94 amu   
99+
Atomic Volume
Not Available   
8.78 cm3/mol   
99+
Electron Configuration
[Rn] 7s1   
[Ar] 3d3 4s2   
Valence Electron Potential
8.00 (-eV)   
99+
120.00 (-eV)   
6
Atom
  
  
Number of Protons
87   
31
23   
99+
Number of Neutrons
136   
17
28   
99+
Number of Electrons
87   
31
23   
99+
Crystal Structure
?
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)   
?
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
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Radius of an Atom
  
  
Atomic Radius
Not Available   
134.00 pm   
99+
Covalent Radius
260.00 pm   
1
153.00 pm   
33
Van der Waals Radius
348.00 pm   
1
200.00 pm   
28
Lattice Constant
Not Available   
303.00 pm   
99+
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Radium
  
Chromium
  
Previous Element
Polonium
  
Titanium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
3.00 nΩ·m   
99+
197.00 nΩ·m   
19
Electrical Conductivity
0.03 106/cm Ω   
40
0.05 106/cm Ω   
35
Electron Affinity
Not Available   
50.60 kJ/mol   
20
Electrical Property
?
Poor conductor metals have moderate resistance to electric currents. They can conduct electric current through them with very low efficiency.Poor Conductor   
?
Under certain conditions, superconductor metals offer zero resistance to electric current it means this type of metals will conduct electricity without any resistance.Superconductor   
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
5.96   
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   
?
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   
0.49 J/(kg K)   
10
Thermal Conductivity
15.00 W/m·K   
99+
30.70 W/m·K   
39
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
24.89 J/mol·K   
99+
Thermal Expansion
Not Available   
8.40 µm/(m·K)   
99+
Standard Molar Entropy
Not Available   
28.90 J/mol.K   
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
458.60 kJ/mol   
14
Enthalpy of Fusion
Not Available   
17.57 kJ/mol   
14
Enthalpy of Atomization
71.00 kJ/mol   
99+
514.60 kJ/mol   
13
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