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Lutetium vs Tantalum

Lutetium
Tantalum
Tantalum vs Lutetium


Periodic Table
Symbol
Lu  
Ta  
Group Number
3  
15
5  
13
Period Number
6  
6  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7439943  
99+
7440257  
99+
Space Group Name
P63/mmc  
Im_ 3m  
Space Group Number
194.00  
7
229.00  
2
Facts
Interesting Facts
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Georges Urbain and Carl Auer von Welsbach  
Anders Gustaf Ekeberg  
Discovery
In 1906  
In 1802  
Abundance
  
  
Abundance In Universe
0.00 %  
31
0.00 %  
32
Abundance In Sun
0.00 %  
26
0.00 %  
18
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
37
Abundance In Oceans
0.00 %  
99+
0.00 %  
31
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  
  • 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.
  
Industrial Uses
-  
Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Low Toxic  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
99+
0.03 p.p.m.  
33
Physical
Melting Point
1,652.00 °C  
19
2,996.00 °C  
4
Boiling Point
3,402.00 °C  
20
5,425.00 °C  
4
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Gray Blue  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
4.50  
10
6.50  
5
Brinell Hardness
893.00 MPa  
11
440.00 MPa  
33
Vickers Hardness
1,160.00 MPa  
14
870.00 MPa  
19
Speed of Sound
5,200.00 m/s  
10
3,400.00 m/s  
33
Optical Properties
  
  
Refractive Index
1.90  
18
2.15  
10
Reflectivity
60.00 %  
23
78.00 %  
8
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Lu  
Ta  
Isotopes
  
  
Known Isotopes
35  
4
31  
8
Electronegativity
  
  
Pauling Electronegativity
1.27  
35
1.50  
28
Sanderson Electronegativity
1.27  
27
1.50  
18
Allred Rochow Electronegativity
1.14  
29
1.33  
23
Mulliken-Jaffe Electronegativity
1.27  
34
1.50  
26
Allen Electronegativity
1.27  
99+
1.34  
38
Electropositivity
  
  
Pauling Electropositivity
2.73  
20
2.50  
27
Ionization Energies
  
  
1st Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
18
2nd Energy Level
1,340.00 kJ/mol  
99+
1,500.00 kJ/mol  
99+
3rd Energy Level
2,022.30 kJ/mol  
99+
761.00 kJ/mol  
99+
4th Energy Level
4,370.00 kJ/mol  
38
7,610.00 kJ/mol  
9
5th Energy Level
6,445.00 kJ/mol  
34
7,610.00 kJ/mol  
19
6th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
36
7th Energy level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
30
8th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
30
9th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
26
10th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
30
11th Energy Level
5,235.00 kJ/mol  
99+
7,610.00 kJ/mol  
29
12th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
99+
13th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
22
14th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
19
15th Energy Level
52,300.00 kJ/mol  
99+
76,100.00 kJ/mol  
19
16th Energy Level
52,300.00 kJ/mol  
99+
76,100.00 kJ/mol  
14
17th Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
35
18th Energy Level
5,230.00 kJ/mol  
99+
7,610.00 kJ/mol  
25
19th Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
32
20th Energy Level
523.00 kJ/mol  
99+
761.00 kJ/mol  
26
21st Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
99+
22nd Energy Level
523.00 kJ/mol  
99+
761.00 kJ/mol  
20
23rd Energy Level
5,230.00 kJ/mol  
28
761.00 kJ/mol  
99+
24th Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
16
25th Energy Level
523.00 kJ/mol  
99+
761.00 kJ/mol  
16
26th Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
16
27th Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
15
28th Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
21
29th Energy Level
523.50 kJ/mol  
99+
761.00 kJ/mol  
22
30th Energy Level
523.00 kJ/mol  
99+
761.00 kJ/mol  
16
Electrochemical Equivalent
2.18 g/amp-hr  
27
1.35 g/amp-hr  
99+
Electron Work Function
3.30 eV  
99+
4.25 eV  
28
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
71  
99+
73  
99+
Electron Configuration
[Xe] 6s2 4f14 5d1  
[Xe] 4f14 5d3 6s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
71  
99+
73  
99+
Number of Neutrons
104  
31
108  
29
Number of Electrons
71  
99+
73  
99+
Radius of an Atom
  
  
Atomic Radius
174.00 pm  
22
146.00 pm  
37
Covalent Radius
187.00 pm  
20
170.00 pm  
27
Van der Waals Radius
221.00 pm  
27
200.00 pm  
35
Atomic Weight
174.97 amu  
40
180.95 amu  
38
Atomic Volume
17.78 cm3/mol  
99+
10.90 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Ytterbium
  
Hafnium
  
Next Element
Hafnium
  
Tungsten
  
Valence Electron Potential
50.90 (-eV)  
27
110.00 (-eV)  
7
Lattice Constant
350.31 pm  
99+
330.13 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.59  
32
1.41  
99+
Mechanical
Density
  
  
Density At Room Temperature
9.84 g/cm3  
99+
16.69 g/cm3  
18
Density When Liquid (at m.p.)
9.30 g/cm3  
99+
15.00 g/cm3  
23
Tensile Strength
230.00 MPa  
18
180.00 MPa  
20
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
35
0.00 (Pa)  
37
Vapor Pressure at 2000 K
3.18 (Pa)  
11
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
27.20 GPa  
33
69.00 GPa  
13
Bulk Modulus
47.60 GPa  
25
200.00 GPa  
8
Young's Modulus
68.60 GPa  
32
186.00 GPa  
14
Poisson Ratio
0.26  
21
0.34  
10
Other Mechanical Properties
-  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
9.84  
99+
16.65  
20
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
9
0.00 H/m  
17
Susceptibility
0.00  
14
0.00  
27
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
582.00 nΩ·m  
9
131.00 nΩ·m  
25
Electrical Conductivity
0.02 106/cm Ω  
99+
0.08 106/cm Ω  
32
Electron Affinity
50.00 kJ/mol  
26
31.00 kJ/mol  
35
Thermal
Specific Heat
0.15 J/(kg K)  
37
0.14 J/(kg K)  
38
Molar Heat Capacity
26.86 J/mol·K  
31
25.36 J/mol·K  
99+
Thermal Conductivity
16.40 W/m·K  
99+
57.50 W/m·K  
27
Critical Temperature
1,925.00 K  
23
3,290.00 K  
4
Thermal Expansion
9.90 µm/(m·K)  
99+
6.30 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
355.90 kJ/mol  
32
753.10 kJ/mol  
2
Enthalpy of Fusion
18.70 kJ/mol  
13
31.40 kJ/mol  
3
Enthalpy of Atomization
398.00 kJ/mol  
26
782.00 kJ/mol  
3
Standard Molar Entropy
51.00 J/mol.K  
99+
41.50 J/mol.K  
99+
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