Tantalum vs Aluminium
Periodic Table
Symbol
Ta
Al
Group Number
5
13
13
5
Period Number
6
3
Block
d block
p block
Element Family
Transition Metal
Post-Transition
CAS Number
7440257
99+
7429905
99+
Space Group Name
Im_ 3m
Fm_ 3m
Space Group Number
229.00
1
225.00
2
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.
- Aluminum’s abundance percentage is more as it is found in more than 260 minerals.
- Pure Aluminum always reacts with oxygen rapidly.
- It is a good conductor of heat and electricity and used in transmission lines.
Sources
Found in Minerals, Mining, Ores of Minerals
By Electrolysis Process, Earth's crust, Mining
History
Who Discovered
Anders Gustaf Ekeberg
Hans Christian Oersted
Discovery
In 1802
In 1825
Abundance
Abundance In Universe
8 * 10-9 %
31
5 * 10-3 %
5
Abundance In Sun
~-9999 %
~0.006 %
5
Abundance In Meteorites
0.00 %
99+
0.91 %
5
Abundance In Earth's Crust
0.00 %
37
8.10 %
1
Abundance In Oceans
0.00 %
31
0.00 %
6
Abundance In Humans
Not Available
0.00 %
10
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.
- Aluminum is used in a various products; for example, cans, foils, kitchen utensils, window frames, beer kegs and aero plane parts, automobile parts, etc.
Industrial Uses
Electrical Industry, Electronic Industry
Aerospace Industry, Ammunition Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
Other Uses
Alloys
Alloys, Jewellery, Sculptures, Statues
Biological Properties
Toxicity
Low Toxic
Non Toxic
Present in Human Body
Yes
Yes
In Blood
Not Available
0.39 Blood/mg dm-3
9
In Bone
0.03 p.p.m.
28
27.00 p.p.m.
11
Physical Properties
Melting Point
2,996.00 °C
4
660.37 °C
99+
Boiling Point
5,425.00 °C
4
2,467.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Gray Blue
Silvery Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
6.50
5
2.75
13
Brinell Hardness
440.00 MPa
28
160.00 MPa
99+
Vickers Hardness
870.00 MPa
12
160.00 MPa
35
Speed of Sound
3,400.00 m/s
22
5,000.00 m/s
10
Optical Properties
Reflectivity
78.00 %
6
71.00 %
10
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
Al
Isotopes
Known Isotopes
31
8
11
27
Electronegativity
Pauling Electronegativity
1.50
27
1.61
22
Sanderson Electronegativity
Not Available
1.71
13
Allred Rochow Electronegativity
1.33
22
1.47
14
Mulliken-Jaffe Electronegativity
Not Available
1.83
8
Allen Electronegativity
1.34
33
1.61
20
Electropositivity
Pauling Electropositivity
2.50
27
2.39
32
Ionization Energies
1st Energy Level
761.00 kJ/mol
18
577.50 kJ/mol
99+
2nd Energy Level
1,500.00 kJ/mol
40
1,816.70 kJ/mol
19
3rd Energy Level
Not Available
2,744.80 kJ/mol
38
4th Energy Level
Not Available
11,577.00 kJ/mol
3
5th Energy Level
Not Available
14,842.00 kJ/mol
2
6th Energy Level
Not Available
18,379.00 kJ/mol
2
7th Energy level
Not Available
23,326.00 kJ/mol
2
8th Energy Level
Not Available
27,465.00 kJ/mol
2
9th Energy Level
Not Available
31,853.00 kJ/mol
2
10th Energy Level
Not Available
38,473.00 kJ/mol
4
11th Energy Level
Not Available
42,647.00 kJ/mol
5
Electrochemical Equivalent
1.35 g/amp-hr
99+
0.34 g/amp-hr
99+
Electron Work Function
4.25 eV
21
4.28 eV
19
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Ionization, Radioactive Isotopes
Atomic Properties
Atomic Number
73
99+
13
99+
Electron Configuration
[Xe] 4f14 5d3 6s2
[Ne] 3s2 3p1
Crystal Structure
Body Centered Cubic (BCC)
Face Centered Cubic (FCC)
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
FCC-Crystal-Structure-of-Aluminium.jpg#100
Atom
Number of Protons
73
99+
13
99+
Number of Neutrons
108
28
14
99+
Number of Electrons
73
99+
13
99+
Radius of an Atom
Atomic Radius
146.00 pm
35
143.00 pm
37
Covalent Radius
170.00 pm
25
121.00 pm
99+
Van der Waals Radius
200.00 pm
28
184.00 pm
34
Atomic Weight
180.95 amu
38
26.98 amu
99+
Atomic Volume
10.90 cm3/mol
99+
10.00 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
110.00 (-eV)
7
80.70 (-eV)
17
Lattice Constant
330.13 pm
99+
404.95 pm
22
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
16.69 g/cm3
18
2.70 g/cm3
99+
Density When Liquid (at m.p.)
15.00 g/cm3
9
2.38 g/cm3
99+
Tensile Strength
Not Available
40.00 MPa
19
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.00 (Pa)
18
Vapor Pressure at 2000 K
0.00 (Pa)
31
Not Available
Elasticity properties
Shear Modulus
69.00 GPa
13
26.00 GPa
29
Bulk Modulus
200.00 GPa
8
76.00 GPa
18
Young's Modulus
186.00 GPa
13
70.00 GPa
28
Poisson Ratio
0.34
10
0.35
9
Other Mechanical Properties
Ductile
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
16.65
11
2.72
99+
Magnetic Ordering
Paramagnetic
Paramagnetic
Permeability
Not Available
0.00 H/m
4
Susceptibility
Not Available
0.00
3
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
131.00 nΩ·m
25
28.20 nΩ·m
99+
Electrical Conductivity
0.08 106/cm Ω
27
0.38 106/cm Ω
4
Electron Affinity
31.00 kJ/mol
29
42.50 kJ/mol
26
Thermal Properties
Specific Heat
0.14 J/(kg K)
37
0.90 J/(kg K)
5
Molar Heat Capacity
25.36 J/mol·K
99+
24.20 J/mol·K
99+
Thermal Conductivity
57.50 W/m·K
27
237.00 W/m·K
4
Critical Temperature
Not Available
Not Available
Thermal Expansion
6.30 µm/(m·K)
99+
23.10 µm/(m·K)
17
Enthalpy
Enthalpy of Vaporization
753.10 kJ/mol
2
293.70 kJ/mol
31
Enthalpy of Fusion
31.40 kJ/mol
3
10.67 kJ/mol
35
Enthalpy of Atomization
782.00 kJ/mol
3
322.20 kJ/mol
31
Standard Molar Entropy
41.50 J/mol.K
37
28.30 J/mol.K
99+
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