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Tantalum vs Silver

Tantalum
Silver
Silver vs Tantalum


Periodic Table
Symbol
Ta  
Ag  
Group Number
5  
13
11  
7
Period Number
6  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440257  
99+
7440224  
99+
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 the most reflective element.
  • Silver is the second most ductile metal after Gold.
  • It is also used in Dentistry as a dental alloys for clips and crowning.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Found in Minerals, Ores of metals  
History
  
  
Who Discovered
Anders Gustaf Ekeberg  
-  
Discovery
In 1802  
Before 5000 BC  
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 %  
38
Abundance In Earth's Crust
0.00 %  
37
0.00 %  
99+
Abundance In Oceans
0.00 %  
31
0.00 %  
19
Abundance In Humans
0.00 %  
24
0.00 %  
24
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.
  
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
  
Industrial Uses
Electrical Industry, Electronic Industry  
Chemical Industry, Clothing Industry, Electrical 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  
29
In Bone
0.03 p.p.m.  
33
0.44 p.p.m.  
24
Physical
Melting Point
2,996.00 °C  
4
961.93 °C  
99+
Boiling Point
5,425.00 °C  
4
2,212.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gray Blue  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.50  
5
2.50  
15
Brinell Hardness
440.00 MPa  
33
251.00 MPa  
99+
Vickers Hardness
870.00 MPa  
19
229.00 MPa  
99+
Speed of Sound
3,400.00 m/s  
33
2,680.00 m/s  
99+
Optical Properties
  
  
Refractive Index
2.15  
10
0.16  
99+
Reflectivity
78.00 %  
8
97.00 %  
1
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ta  
Ag  
Isotopes
  
  
Known Isotopes
31  
8
36  
3
Electronegativity
  
  
Pauling Electronegativity
1.50  
28
1.93  
10
Sanderson Electronegativity
1.50  
18
1.83  
14
Allred Rochow Electronegativity
1.33  
23
1.42  
19
Mulliken-Jaffe Electronegativity
1.50  
26
1.47  
28
Allen Electronegativity
1.34  
38
1.87  
10
Electropositivity
  
  
Pauling Electropositivity
2.50  
27
2.07  
99+
Ionization Energies
  
  
1st Energy Level
761.00 kJ/mol  
18
731.00 kJ/mol  
27
2nd Energy Level
1,500.00 kJ/mol  
99+
2,070.00 kJ/mol  
11
3rd Energy Level
761.00 kJ/mol  
99+
3,361.00 kJ/mol  
19
4th Energy Level
7,610.00 kJ/mol  
9
7,310.00 kJ/mol  
10
5th Energy Level
7,610.00 kJ/mol  
19
7,310.00 kJ/mol  
24
6th Energy Level
7,610.00 kJ/mol  
36
7,310.00 kJ/mol  
39
7th Energy level
7,610.00 kJ/mol  
30
7,310.00 kJ/mol  
33
8th Energy Level
7,610.00 kJ/mol  
30
7,310.00 kJ/mol  
31
9th Energy Level
7,610.00 kJ/mol  
26
7,310.00 kJ/mol  
27
10th Energy Level
7,610.00 kJ/mol  
30
7,310.00 kJ/mol  
32
11th Energy Level
7,610.00 kJ/mol  
29
7,310.00 kJ/mol  
31
12th Energy Level
7,610.00 kJ/mol  
99+
7,310.00 kJ/mol  
99+
13th Energy Level
7,610.00 kJ/mol  
22
7,310.00 kJ/mol  
25
14th Energy Level
7,610.00 kJ/mol  
19
731.00 kJ/mol  
99+
15th Energy Level
76,100.00 kJ/mol  
19
73,100.00 kJ/mol  
22
16th Energy Level
76,100.00 kJ/mol  
14
73,100.00 kJ/mol  
17
17th Energy Level
761.00 kJ/mol  
35
731.00 kJ/mol  
38
18th Energy Level
7,610.00 kJ/mol  
25
7,310.00 kJ/mol  
28
19th Energy Level
761.00 kJ/mol  
32
731.00 kJ/mol  
35
20th Energy Level
761.00 kJ/mol  
26
731.00 kJ/mol  
29
21st Energy Level
761.00 kJ/mol  
99+
731.00 kJ/mol  
99+
22nd Energy Level
761.00 kJ/mol  
20
731.00 kJ/mol  
23
23rd Energy Level
761.00 kJ/mol  
99+
731.00 kJ/mol  
99+
24th Energy Level
761.00 kJ/mol  
16
731.00 kJ/mol  
22
25th Energy Level
761.00 kJ/mol  
16
731.00 kJ/mol  
22
26th Energy Level
761.00 kJ/mol  
16
731.00 kJ/mol  
22
27th Energy Level
761.00 kJ/mol  
15
731.00 kJ/mol  
21
28th Energy Level
761.00 kJ/mol  
21
731.00 kJ/mol  
27
29th Energy Level
761.00 kJ/mol  
22
731.00 kJ/mol  
28
30th Energy Level
761.00 kJ/mol  
16
731.00 kJ/mol  
22
Electrochemical Equivalent
1.35 g/amp-hr  
99+
4.02 g/amp-hr  
7
Electron Work Function
4.25 eV  
28
4.26 eV  
27
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Chemical Stability, Ionization, Solubility  
Atomic
Atomic Number
73  
99+
47  
99+
Electron Configuration
[Xe] 4f14 5d3 6s2  
[Kr] 4d10 5s1  
Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Silver.jpg#100  
Atom
  
  
Number of Protons
73  
99+
47  
99+
Number of Neutrons
108  
29
61  
99+
Number of Electrons
73  
99+
47  
99+
Radius of an Atom
  
  
Atomic Radius
146.00 pm  
37
144.00 pm  
38
Covalent Radius
170.00 pm  
27
145.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
172.00 pm  
99+
Atomic Weight
180.95 amu  
38
107.87 amu  
99+
Atomic Volume
10.90 cm3/mol  
99+
10.30 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Palladium
  
Next Element
Tungsten
  
Cadmium
  
Valence Electron Potential
110.00 (-eV)  
7
11.40 (-eV)  
99+
Lattice Constant
330.13 pm  
99+
408.53 pm  
23
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.41  
99+
1.59  
26
Mechanical
Density
  
  
Density At Room Temperature
16.69 g/cm3  
18
10.49 g/cm3  
37
Density When Liquid (at m.p.)
15.00 g/cm3  
23
9.32 g/cm3  
99+
Tensile Strength
180.00 MPa  
20
170.00 MPa  
21
Viscosity
0.00  
25
0.00  
23
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
14
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.00 (Pa)  
38
Elasticity properties
  
  
Shear Modulus
69.00 GPa  
13
30.00 GPa  
27
Bulk Modulus
200.00 GPa  
8
100.00 GPa  
16
Young's Modulus
186.00 GPa  
14
83.00 GPa  
25
Poisson Ratio
0.34  
10
0.37  
7
Other Mechanical Properties
Ductile  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
16.65  
20
10.50  
39
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
27
0.00  
32
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
131.00 nΩ·m  
25
15.87 nΩ·m  
99+
Electrical Conductivity
0.08 106/cm Ω  
32
0.63 106/cm Ω  
1
Electron Affinity
31.00 kJ/mol  
35
125.60 kJ/mol  
5
Thermal
Specific Heat
0.14 J/(kg K)  
38
0.24 J/(kg K)  
25
Molar Heat Capacity
25.36 J/mol·K  
99+
25.35 J/mol·K  
99+
Thermal Conductivity
57.50 W/m·K  
27
429.00 W/m·K  
1
Critical Temperature
3,290.00 K  
4
1,235.00 K  
99+
Thermal Expansion
6.30 µm/(m·K)  
99+
18.90 µm/(m·K)  
25
Enthalpy
  
  
Enthalpy of Vaporization
753.10 kJ/mol  
2
255.10 kJ/mol  
99+
Enthalpy of Fusion
31.40 kJ/mol  
3
11.30 kJ/mol  
37
Enthalpy of Atomization
782.00 kJ/mol  
3
284.50 kJ/mol  
99+
Standard Molar Entropy
41.50 J/mol.K  
99+
42.60 J/mol.K  
99+
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