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Properties of Europium and Molybdenum

Europium
Molybdenum
Properties of Molybdenum & Europium


Physical Properties
Melting Point
822.00 °C   
99+
2,617.00 °C   
5
Boiling Point
1,597.00 °C   
99+
4,612.00 °C   
9
Hardness
  
  
Mohs Hardness
Not Available   
5.50   
7
Brinell Hardness
Not Available   
1,370.00 MPa   
7
Vickers Hardness
167.00 MPa   
34
1,400.00 MPa   
6
Optical Properties
  
  
Refractive Index
Not Available   
Not Available   
Reflectivity
Not Available   
58.00 %   
15
Speed of Sound
Not Available   
5,400.00 m/s   
6
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
Eu   
Mo   
Isotopes
  
  
Known Isotopes
31   
8
25   
14
Electronegativity
  
  
Pauling Electronegativity
1.20   
39
2.16   
5
Sanderson Electronegativity
1.01   
22
1.15   
19
Allred Rochow Electronegativity
Not Available   
1.30   
24
Mulliken-Jaffe Electronegativity
Not Available   
Not Available   
Allen Electronegativity
Not Available   
2.16   
3
Electropositivity
  
  
Pauling Electropositivity
Not Available   
1.84   
99+
Ionization Energies
  
  
1st Energy Level
547.10 kJ/mol   
99+
684.30 kJ/mol   
37
2nd Energy Level
1,085.00 kJ/mol   
99+
1,560.00 kJ/mol   
37
3rd Energy Level
2,404.00 kJ/mol   
99+
2,618.00 kJ/mol   
99+
Electrochemical Equivalent
1.89 g/amp-hr   
33
0.89 g/amp-hr   
99+
Electron Work Function
2.50 eV   
99+
4.60 eV   
12
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, 
?
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, 
?
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
5.26 g/cm3   
99+
10.28 g/cm3   
36
Density When Liquid (at m.p.)
5.13 g/cm3   
99+
9.33 g/cm3   
20
Vapor Pressure
  
  
Vapor Pressure at 1000 K
19.40 (Pa)   
4
Not Available   
Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
26
Tensile Strength
120.00 MPa   
15
324.00 MPa   
13
Viscosity
Not Available   
Not Available   
Elasticity properties
  
  
Shear Modulus
7.90 GPa   
99+
126.00 GPa   
8
Bulk Modulus
8.30 GPa   
99+
230.00 GPa   
6
Young's Modulus
18.20 GPa   
99+
329.00 GPa   
6
Poisson Ratio
0.15   
34
0.31   
13
Other Mechanical Properties
?
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   
?
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, 
?
Weldability of metals defines their ability to be welded.This property of metals also known as joinability.Weldable   
Periodic Table
Symbol
Eu   
Mo   
Group Number
Not Available   
6   
12
Period Number
6   
5   
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 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
?
Total 15 metals are included in Lanthanide series from Lanthanum to Lutetium. Lanthanide series is located under f and d block of the periodic table.Lanthanide   
?
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
63   
99+
42   
99+
Atomic Weight
151.96 amu   
99+
95.95 amu   
99+
Atomic Volume
28.90 cm3/mol   
8
9.40 cm3/mol   
99+
Electron Configuration
[Xe] 4f7 6s2   
[Kr] 4d5 5s1   
Valence Electron Potential
45.60 (-eV)   
35
88.60 (-eV)   
13
Atom
  
  
Number of Protons
63   
99+
42   
99+
Number of Neutrons
89   
38
54   
99+
Number of Electrons
63   
99+
42   
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
180.00 pm   
14
139.00 pm   
39
Covalent Radius
198.00 pm   
13
154.00 pm   
32
Van der Waals Radius
233.00 pm   
18
200.00 pm   
28
Lattice Constant
458.10 pm   
17
314.70 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Adjacent Atomic Numbers
  
  
Next Element
Gadolinium
  
Technetium
  
Previous Element
Samarium
  
Niobium
  
Magnetic Properties
Electrical Properties
  
  
Resistivity
0.90 nΩ·m   
99+
53.40 nΩ·m   
99+
Electrical Conductivity
0.01 106/cm Ω   
99+
0.19 106/cm Ω   
11
Electron Affinity
50.00 kJ/mol   
21
71.90 kJ/mol   
14
Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor   
?
Semiconductor metals have conductivity between that of a conductor and an insulator.Semiconductor   
Magnetic Characteristics
  
  
Specific Gravity
5.24   
99+
10.22   
27
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
0.18 J/(kg K)   
33
0.25 J/(kg K)   
21
Thermal Conductivity
13.90 W/m·K   
99+
138.00 W/m·K   
12
Critical Temperature
Not Available   
Not Available   
Molar Heat Capacity
27.66 J/mol·K   
16
24.06 J/mol·K   
99+
Thermal Expansion
35.00 µm/(m·K)   
8
4.80 µm/(m·K)   
99+
Standard Molar Entropy
77.80 J/mol.K   
4
28.70 J/mol.K   
99+
Enthalpy
  
  
Enthalpy of Vaporization
143.50 kJ/mol   
99+
594.10 kJ/mol   
8
Enthalpy of Fusion
9.21 kJ/mol   
37
27.61 kJ/mol   
5
Enthalpy of Atomization
180.00 kJ/mol   
99+
653.00 kJ/mol   
7
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