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Properties of Francium and Indium

Francium
Indium
Properties of Indium & Francium


Physical Properties
Melting Point
27.00 °C   
99+
156.61 °C   
99+
Boiling Point
677.00 °C   
99+
2,000.00 °C   
99+
Hardness
  
  
Mohs Hardness
Not Available   
1.20   
20
Brinell Hardness
Not Available   
8.80 MPa   
99+
Vickers Hardness
Not Available   
Not Available   
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
Not Available   
Speed of Sound
Not Available   
1,215.00 m/s   
99+
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   
In   
Isotopes
  
  
Known Isotopes
33   
6
35   
4
Electronegativity
  
  
Pauling Electronegativity
0.70   
99+
1.78   
16
Sanderson Electronegativity
Not Available   
2.14   
8
Allred Rochow Electronegativity
0.86   
99+
1.49   
13
Mulliken-Jaffe Electronegativity
0.68   
25
1.76   
10
Allen Electronegativity
0.67   
99+
1.66   
18
Electropositivity
  
  
Pauling Electropositivity
3.30   
1
2.22   
38
Ionization Energies
  
  
1st Energy Level
380.00 kJ/mol   
99+
558.30 kJ/mol   
99+
2nd Energy Level
Not Available   
1,820.70 kJ/mol   
18
3rd Energy Level
Not Available   
2,704.00 kJ/mol   
39
Electrochemical Equivalent
8.32 g/amp-hr   
1
1.43 g/amp-hr   
99+
Electron Work Function
Not Available   
4.12 eV   
24
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   
?
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
1.87 g/cm3   
99+
7.31 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
7.02 g/cm3   
33
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.01 (Pa)   
11
Vapor Pressure at 2000 K
Not Available   
Not Available   
Tensile Strength
Not Available   
2.50 MPa   
21
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
Not Available   
Not Available   
Bulk Modulus
Not Available   
Not Available   
Young's Modulus
Not Available   
11.00 GPa   
99+
Poisson Ratio
Not Available   
Not Available   
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   
In   
Group Number
1   
17
13   
5
Period Number
7   
5   
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 p-block is on the right side of the periodic table and includes elements from the six columns beginning with column 13 and ending with column 18. Helium, though being in the top of group 18, is not included in the p-block.p 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   
?
All post transition metals are placed in group number 13, 14 and 15 of periodic table. In fact, they are located between Transition Metals and Metalloids. Post transition metals have very poor mechanical properties.Post-​Transition   
Atomic Properties
Atomic Number
87   
31
49   
99+
Atomic Weight
223.00 amu   
27
114.82 amu   
99+
Atomic Volume
Not Available   
15.70 cm3/mol   
33
Electron Configuration
[Rn] 7s1   
[Kr] 4d10 5s2 5p1   
Valence Electron Potential
8.00 (-eV)   
99+
54.00 (-eV)   
25
Atom
  
  
Number of Protons
87   
31
49   
99+
Number of Neutrons
136   
17
66   
99+
Number of Electrons
87   
31
49   
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)   
?
The tetragonal crystal structure occur as a result of stretching a cubic lattice along one of its lattice vectors due to which cube becomes a rectangular prism with a square shape at base.Tetragonal (TETR)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
TETR-Crystal-Structure-of-Indium.jpg#100   
Radius of an Atom
  
  
Atomic Radius
Not Available   
167.00 pm   
24
Covalent Radius
260.00 pm   
1
142.00 pm   
99+
Van der Waals Radius
348.00 pm   
1
193.00 pm   
31
Lattice Constant
Not Available   
325.23 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
  
Tin
  
Previous Element
Polonium
  
Cadmium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
3.00 nΩ·m   
99+
83.70 nΩ·m   
34
Electrical Conductivity
0.03 106/cm Ω   
40
0.12 106/cm Ω   
17
Electron Affinity
Not Available   
28.90 kJ/mol   
31
Electrical Property
?
Poor conductor metals have moderate resistance to electric currents. They can conduct electric current through them with very low efficiency.Poor Conductor   
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
7.31   
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   
?
Diamagnetic metals produce a magnetic field opposite to the applied magnetic field. Thus, they are repelled by magnets and show magnetic nature.Diamagnetic   
Permeability
Not Available   
Not Available   
Susceptibility
Not Available   
Not Available   
Thermal Properties
Specific Heat
Not Available   
0.23 J/(kg K)   
27
Thermal Conductivity
15.00 W/m·K   
99+
81.80 W/m·K   
21
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
Not Available   
26.74 J/mol·K   
25
Thermal Expansion
Not Available   
32.10 µm/(m·K)   
9
Standard Molar Entropy
Not Available   
57.80 J/mol.K   
22
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
226.40 kJ/mol   
40
Enthalpy of Fusion
Not Available   
3.28 kJ/mol   
99+
Enthalpy of Atomization
71.00 kJ/mol   
99+
242.70 kJ/mol   
99+
All >>
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