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Tantalum vs Terbium

Tantalum
Terbium
Terbium vs Tantalum


Periodic Table
Symbol
Ta   
Tb   
Group Number
5   
13
Not Available   
Period Number
6   
6   
Block
d block   
f block   
Element Family
Transition Metal   
Lanthanide   
CAS Number
7440257   
99+
7440279   
99+
Space Group Name
Im_ 3m   
P63/mmc   
Space Group Number
229.00   
1
194.00   
5
Facts
Interesting Facts
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
  
  • At times Terbium metal acts same as Calcium.
  • Terbium metal closely similar to Lanthanum metal.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Found with Other Rare Earth Metals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Anders Gustaf Ekeberg   
Carl Gustaf Mosander   
Discovery
In 1802   
In 1842   
Abundance
  
  
Abundance In Universe
8 * 10-9 %   
31
5 * 10-8 %   
27
Abundance In Sun
~-9999 %   
~0.00000001 %   
29
Abundance In Meteorites
0.00 %   
99+
0.00 %   
99+
Abundance In Earth's Crust
0.00 %   
37
0.00 %   
40
Abundance In Oceans
0.00 %   
31
0.00 %   
99+
Uses
Uses & Benefits
  • Tantalum metal is mainly used in the manufacturing of electron components. Its Oxide layer acts as an insulator.
  • Tantalum metal is also used in surgical transplant like replacement of bone, skull plates and as a woven gauze.
  
  • Terbium salts are used in optical devices like laser devices.
  • Terbium’s alloy lengthens and shortens the magnetic field and this effect forms loudspeaker.
  
Industrial Uses
Electrical Industry, Electronic Industry   
Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Low Toxic   
Low Toxic   
Present in Human Body
Yes   
No   
In Bone
0.03 p.p.m.   
28
Not Available   
Physical Properties
Melting Point
2,996.00 °C   
4
1,356.00 °C   
33
Boiling Point
5,425.00 °C   
4
3,123.00 °C   
29
Appearance
  
  
Physical State
Solid   
Solid   
Color
Gray Blue   
Silvery White   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.50   
5
Not Available   
Brinell Hardness
440.00 MPa   
28
677.00 MPa   
17
Vickers Hardness
870.00 MPa   
12
863.00 MPa   
13
Speed of Sound
3,400.00 m/s   
22
2,620.00 m/s   
35
Optical Properties
  
  
Reflectivity
78.00 %   
6
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
Ta   
Tb   
Isotopes
  
  
Known Isotopes
31   
8
26   
13
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
Not Available   
Allred Rochow Electronegativity
1.33   
22
1.10   
30
Allen Electronegativity
1.34   
33
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.50   
27
Not Available   
Ionization Energies
  
  
1st Energy Level
761.00 kJ/mol   
18
603.40 kJ/mol   
99+
2nd Energy Level
1,500.00 kJ/mol   
40
1,174.80 kJ/mol   
99+
3rd Energy Level
Not Available   
2,417.00 kJ/mol   
99+
4th Energy Level
Not Available   
4,203.00 kJ/mol   
31
Electrochemical Equivalent
1.35 g/amp-hr   
99+
1.98 g/amp-hr   
31
Electron Work Function
4.25 eV   
21
3.00 eV   
36
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
73   
99+
65   
99+
Electron Configuration
[Xe] 4f14 5d3 6s2   
[Xe] 4f9 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Terbium.jpg#100   
Atom
  
  
Number of Protons
73   
99+
65   
99+
Number of Neutrons
108   
28
94   
36
Number of Electrons
73   
99+
65   
99+
Radius of an Atom
  
  
Atomic Radius
146.00 pm   
35
177.00 pm   
17
Covalent Radius
170.00 pm   
25
194.00 pm   
16
Van der Waals Radius
200.00 pm   
28
221.00 pm   
22
Atomic Weight
180.95 amu   
38
158.93 amu   
99+
Atomic Volume
10.90 cm3/mol   
99+
19.20 cm3/mol   
22
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Gadolinium
  
Next Element
Tungsten
  
Dysprosium
  
Valence Electron Potential
110.00 (-eV)   
7
46.80 (-eV)   
33
Lattice Constant
330.13 pm   
99+
360.10 pm   
36
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.58   
13
Mechanical Properties
Density
  
  
Density At Room Temperature
16.69 g/cm3   
18
8.23 g/cm3   
99+
Density When Liquid (at m.p.)
15.00 g/cm3   
9
7.65 g/cm3   
30
Tensile Strength
Not Available   
60.00 MPa   
17
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
29
Vapor Pressure at 2000 K
0.00 (Pa)   
31
12.50 (Pa)   
8
Elasticity properties
  
  
Shear Modulus
69.00 GPa   
13
22.10 GPa   
32
Bulk Modulus
200.00 GPa   
8
38.70 GPa   
33
Young's Modulus
186.00 GPa   
13
55.70 GPa   
34
Poisson Ratio
0.34   
10
0.26   
21
Other Mechanical Properties
Ductile   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
16.65   
11
8.23   
39
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
131.00 nΩ·m   
25
1.15 nΩ·m   
99+
Electrical Conductivity
0.08 106/cm Ω   
27
0.01 106/cm Ω   
99+
Electron Affinity
31.00 kJ/mol   
29
50.00 kJ/mol   
21
Thermal Properties
Specific Heat
0.14 J/(kg K)   
37
0.18 J/(kg K)   
33
Molar Heat Capacity
25.36 J/mol·K   
99+
28.91 J/mol·K   
9
Thermal Conductivity
57.50 W/m·K   
27
11.10 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
6.30 µm/(m·K)   
99+
10.30 µm/(m·K)   
38
Enthalpy
  
  
Enthalpy of Vaporization
753.10 kJ/mol   
2
330.90 kJ/mol   
26
Enthalpy of Fusion
31.40 kJ/mol   
3
10.80 kJ/mol   
34
Enthalpy of Atomization
782.00 kJ/mol   
3
314.00 kJ/mol   
33
Standard Molar Entropy
41.50 J/mol.K   
37
73.20 J/mol.K   
10
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