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Tantalum Gold Comparison

Tantalum
Gold
Gold Tantalum comparison


Periodic Table
Symbol
Ta  
Au  
Group Number
5  
13
11  
7
Period Number
6  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440257  
99+
7440575  
31
Space Group Name
Im_ 3m  
Fm_ 3m  
Space Group Number
229.00  
2
225.00  
3
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.
  
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Mining, Ores of metals  
History
  
  
Who Discovered
Anders Gustaf Ekeberg  
-  
Discovery
In 1802  
Before 6000 BCE  
Abundance
  
  
Abundance In Universe
0.00 %  
32
0.00 %  
27
Abundance In Sun
0.00 %  
18
0.00 %  
26
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
37
0.00 %  
99+
Abundance In Oceans
0.00 %  
31
0.00 %  
21
Abundance In Humans
0.00 %  
24
0.00 %  
21
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.
  
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
Industrial Uses
Electrical Industry, Electronic Industry  
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry  
Other Uses
Alloys  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Low Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
38
In Bone
0.03 p.p.m.  
33
0.02 p.p.m.  
35
Physical
Melting Point
2,996.00 °C  
4
1,064.43 °C  
99+
Boiling Point
5,425.00 °C  
4
2,807.00 °C  
37
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gray Blue  
Gold  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.50  
5
2.50  
15
Brinell Hardness
440.00 MPa  
33
194.00 MPa  
99+
Vickers Hardness
870.00 MPa  
19
216.00 MPa  
99+
Speed of Sound
3,400.00 m/s  
33
2,030.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.15  
10
0.47  
99+
Reflectivity
78.00 %  
8
95.00 %  
2
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ta  
Au  
Isotopes
  
  
Known Isotopes
31  
8
36  
3
Electronegativity
  
  
Pauling Electronegativity
1.50  
28
2.54  
2
Sanderson Electronegativity
1.50  
18
1.50  
18
Allred Rochow Electronegativity
1.33  
23
1.42  
19
Mulliken-Jaffe Electronegativity
1.50  
26
1.87  
15
Allen Electronegativity
1.34  
38
1.92  
7
Electropositivity
  
  
Pauling Electropositivity
2.50  
27
1.46  
99+
Ionization Energies
  
  
1st Energy Level
761.00 kJ/mol  
18
890.10 kJ/mol  
8
2nd Energy Level
1,500.00 kJ/mol  
99+
1,980.00 kJ/mol  
12
3rd Energy Level
761.00 kJ/mol  
99+
2,856.00 kJ/mol  
33
4th Energy Level
7,610.00 kJ/mol  
9
890.10 kJ/mol  
99+
5th Energy Level
7,610.00 kJ/mol  
19
8,901.00 kJ/mol  
6
6th Energy Level
7,610.00 kJ/mol  
36
8,901.00 kJ/mol  
24
7th Energy level
7,610.00 kJ/mol  
30
8,901.00 kJ/mol  
21
8th Energy Level
7,610.00 kJ/mol  
30
8,900.00 kJ/mol  
20
9th Energy Level
7,610.00 kJ/mol  
26
8,901.00 kJ/mol  
20
10th Energy Level
7,610.00 kJ/mol  
30
8,901.00 kJ/mol  
21
11th Energy Level
7,610.00 kJ/mol  
29
8,901.00 kJ/mol  
19
12th Energy Level
7,610.00 kJ/mol  
99+
8,900.00 kJ/mol  
39
13th Energy Level
7,610.00 kJ/mol  
22
8,900.00 kJ/mol  
14
14th Energy Level
7,610.00 kJ/mol  
19
890.10 kJ/mol  
99+
15th Energy Level
76,100.00 kJ/mol  
19
89,000.00 kJ/mol  
7
16th Energy Level
76,100.00 kJ/mol  
14
890.10 kJ/mol  
99+
17th Energy Level
761.00 kJ/mol  
35
890.10 kJ/mol  
25
18th Energy Level
7,610.00 kJ/mol  
25
8,901.00 kJ/mol  
14
19th Energy Level
761.00 kJ/mol  
32
890.10 kJ/mol  
23
20th Energy Level
761.00 kJ/mol  
26
890.00 kJ/mol  
13
21st Energy Level
761.00 kJ/mol  
99+
890.10 kJ/mol  
35
22nd Energy Level
761.00 kJ/mol  
20
890.00 kJ/mol  
11
23rd Energy Level
761.00 kJ/mol  
99+
890.10 kJ/mol  
38
24th Energy Level
761.00 kJ/mol  
16
890.10 kJ/mol  
6
25th Energy Level
761.00 kJ/mol  
16
890.00 kJ/mol  
5
26th Energy Level
761.00 kJ/mol  
16
890.10 kJ/mol  
5
27th Energy Level
761.00 kJ/mol  
15
890.10 kJ/mol  
4
28th Energy Level
761.00 kJ/mol  
21
890.10 kJ/mol  
7
29th Energy Level
761.00 kJ/mol  
22
890.10 kJ/mol  
8
30th Energy Level
761.00 kJ/mol  
16
890.10 kJ/mol  
5
Electrochemical Equivalent
1.35 g/amp-hr  
99+
2.45 g/amp-hr  
25
Electron Work Function
4.25 eV  
28
5.10 eV  
8
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Chemical Stability, Ionization, Solubility  
Atomic
Atomic Number
73  
99+
79  
37
Electron Configuration
[Xe] 4f14 5d3 6s2  
[Xe] 4f14 5d10 6s1  
Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Gold.jpg#100  
Atom
  
  
Number of Protons
73  
99+
79  
37
Number of Neutrons
108  
29
118  
24
Number of Electrons
73  
99+
79  
37
Radius of an Atom
  
  
Atomic Radius
146.00 pm  
37
151.00 pm  
34
Covalent Radius
170.00 pm  
27
144.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
166.00 pm  
99+
Atomic Weight
180.95 amu  
38
196.97 amu  
33
Atomic Volume
10.90 cm3/mol  
99+
10.20 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Platinum
  
Next Element
Tungsten
  
Mercury
  
Valence Electron Potential
110.00 (-eV)  
7
43.40 (-eV)  
99+
Lattice Constant
330.13 pm  
99+
407.82 pm  
24
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.41  
99+
1.61  
18
Mechanical
Density
  
  
Density At Room Temperature
16.69 g/cm3  
18
19.30 g/cm3  
15
Density When Liquid (at m.p.)
15.00 g/cm3  
23
17.31 g/cm3  
16
Tensile Strength
180.00 MPa  
20
120.00 MPa  
27
Viscosity
0.00  
25
0.00  
23
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
25
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
67.00 (Pa)  
4
Elasticity properties
  
  
Shear Modulus
69.00 GPa  
13
27.00 GPa  
34
Bulk Modulus
200.00 GPa  
8
180.00 GPa  
9
Young's Modulus
186.00 GPa  
14
79.00 GPa  
26
Poisson Ratio
0.34  
10
0.40  
4
Other Mechanical Properties
Ductile  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
16.65  
20
19.32  
17
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
10
Susceptibility
0.00  
27
0.00  
22
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
131.00 nΩ·m  
25
2.20 nΩ·m  
99+
Electrical Conductivity
0.08 106/cm Ω  
32
0.45 106/cm Ω  
3
Electron Affinity
31.00 kJ/mol  
35
222.80 kJ/mol  
1
Thermal
Specific Heat
0.14 J/(kg K)  
38
0.13 J/(kg K)  
40
Molar Heat Capacity
25.36 J/mol·K  
99+
25.42 J/mol·K  
99+
Thermal Conductivity
57.50 W/m·K  
27
318.00 W/m·K  
3
Critical Temperature
3,290.00 K  
4
1,337.00 K  
99+
Thermal Expansion
6.30 µm/(m·K)  
99+
14.20 µm/(m·K)  
29
Enthalpy
  
  
Enthalpy of Vaporization
753.10 kJ/mol  
2
324.40 kJ/mol  
99+
Enthalpy of Fusion
31.40 kJ/mol  
3
12.55 kJ/mol  
33
Enthalpy of Atomization
782.00 kJ/mol  
3
364.00 kJ/mol  
34
Standard Molar Entropy
41.50 J/mol.K  
99+
47.40 J/mol.K  
99+
Summary >>
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