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Properties of Terbium and Plutonium


Properties of Plutonium & Terbium


Physical Properties

Melting Point
1,356.00 °C   
33
639.50 °C   
99+

Boiling Point
3,123.00 °C   
29
3,235.00 °C   
24

Hardness
  
  

Mohs Hardness
Not Available   
Not Available   

Brinell Hardness
677.00 MPa   
17
Not Available   

Vickers Hardness
863.00 MPa   
13
Not Available   

Optical Properties
  
  

Refractive Index
Not Available   
Not Available   

Reflectivity
Not Available   
Not Available   

Speed of Sound
2,620.00 m/s   
35
2,260.00 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
Tb   
Pu   

Isotopes
  
  

Known Isotopes
26   
13
20   
19

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.28   
33

Sanderson Electronegativity
Not Available   
Not Available   

Allred Rochow Electronegativity
1.10   
30
1.22   
26

Mulliken-Jaffe Electronegativity
Not Available   
Not Available   

Allen Electronegativity
Not Available   
Not Available   

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.72   
21

Ionization Energies
  
  

1st Energy Level
603.40 kJ/mol   
99+
584.70 kJ/mol   
99+

2nd Energy Level
1,174.80 kJ/mol   
99+
1,128.00 kJ/mol   
99+

3rd Energy Level
2,417.00 kJ/mol   
99+
2,084.00 kJ/mol   
99+

Electrochemical Equivalent
1.98 g/amp-hr   
31
2.28 g/amp-hr   
22

Electron Work Function
3.00 eV   
36
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, 
?
Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility
  
?
Corrosion is a process which converts refined metals to their more stable forms, for example, its oxide and hydroxide. This process of metals getting corroded is a gradual destruction of metals by chemical reactions.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, 
?
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
8.23 g/cm3   
99+
19.82 g/cm3   
13

Density When Liquid (at m.p.)
7.65 g/cm3   
30
16.63 g/cm3   
8

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
29
0.00 (Pa)   
26

Vapor Pressure at 2000 K
12.50 (Pa)   
8
2.20 (Pa)   
12

Tensile Strength
60.00 MPa   
17
Not Available   

Viscosity
Not Available   
Not Available   

Elasticity properties
  
  

Shear Modulus
22.10 GPa   
32
43.00 GPa   
18

Bulk Modulus
38.70 GPa   
33
Not Available   

Young's Modulus
55.70 GPa   
34
96.00 GPa   
21

Poisson Ratio
0.26   
21
0.21   
32

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, 
?
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
  
?
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
Tb   
Pu   

Group Number
Not Available   
0   
18

Period Number
6   
7   

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 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
?
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
  
?
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
65   
99+
94   
24

Atomic Weight
158.93 amu   
99+
244.00 amu   
19

Atomic Volume
19.20 cm3/mol   
22
12.32 cm3/mol   
99+

Electron Configuration
[Xe] 4f9 6s2   
[Rn] 5f6 7s2   

Valence Electron Potential
46.80 (-eV)   
33
64.90 (-eV)   
21

Atom
  
  

Number of Protons
65   
99+
94   
24

Number of Neutrons
94   
36
150   
11

Number of Electrons
65   
99+
94   
24

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)
  
?
The mono-clinic crystal structure is one of the seven lattice point groups. Here vectors of crystal have unequal lengths. Here vectors of crystal have unequal lengths and have two vectors perpendicular to the 3rd oneMonoclinic (MON)
  

Crystal Lattice
HCP-Crystal-Structure-of-Terbium.jpg#100   
MON-Crystal-Structure-of-Plutonium.jpg#100   

Radius of an Atom
  
  

Atomic Radius
177.00 pm   
17
159.00 pm   
28

Covalent Radius
194.00 pm   
16
187.00 pm   
20

Van der Waals Radius
221.00 pm   
22
200.00 pm   
28

Lattice Constant
360.10 pm   
36
618.30 pm   
4

Lattice Angles
π/2, π/2, 2 π/3   
NA   

Lattice C/A Ratio
1.58   
13
Not Available   

Adjacent Atomic Numbers
  
  

Next Element
Dysprosium
  
Americium
  

Previous Element
Gadolinium
  
Neptunium
  

Magnetic Properties

Electrical Properties
  
  

Resistivity
1.15 nΩ·m   
99+
1.46 nΩ·m   
99+

Electrical Conductivity
0.01 106/cm Ω   
99+
0.01 106/cm Ω   
99+

Electron Affinity
50.00 kJ/mol   
21
Not Available   

Electrical Property
?
Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
  
?
Poor conductor metals have moderate resistance to electric currents. They can conduct electric current through them with very low efficiency.Poor Conductor
  

Magnetic Characteristics
  
  

Specific Gravity
8.23   
39
19.84   
7

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
0.13 J/(kg K)   
39

Thermal Conductivity
11.10 W/m·K   
99+
6.74 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Molar Heat Capacity
28.91 J/mol·K   
9
35.50 J/mol·K   
3

Thermal Expansion
10.30 µm/(m·K)   
38
46.70 µm/(m·K)   
6

Standard Molar Entropy
73.20 J/mol.K   
10
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
330.90 kJ/mol   
26
344.00 kJ/mol   
25

Enthalpy of Fusion
10.80 kJ/mol   
34
2.82 kJ/mol   
99+

Enthalpy of Atomization
314.00 kJ/mol   
33
360.00 kJ/mol   
26

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