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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   
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.
  
  • 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   
Unknown   
Discovery
In 1802   
Before 5000 BC   
Abundance
  
  
Abundance In Universe
8 * 10-9 %   
31
6 * 10-8 %   
26
Abundance In Sun
~-9999 %   
~0.0000001 %   
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
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
NA   
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
Not Available   
0.00 Blood/mg dm-3   
29
In Bone
0.03 p.p.m.   
28
0.44 p.p.m.   
20
Physical Properties
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   
14
Brinell Hardness
440.00 MPa   
28
251.00 MPa   
37
Vickers Hardness
870.00 MPa   
12
229.00 MPa   
30
Speed of Sound
3,400.00 m/s   
22
2,680.00 m/s   
34
Optical Properties
  
  
Reflectivity
78.00 %   
6
97.00 %   
1
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   
Ag   
Isotopes
  
  
Known Isotopes
31   
8
36   
3
Electronegativity
  
  
Pauling Electronegativity
1.50   
27
1.93   
9
Sanderson Electronegativity
Not Available   
1.83   
11
Allred Rochow Electronegativity
1.33   
22
1.42   
18
Mulliken-Jaffe Electronegativity
Not Available   
1.47   
15
Allen Electronegativity
1.34   
33
1.87   
7
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   
40
2,070.00 kJ/mol   
11
3rd Energy Level
Not Available   
3,361.00 kJ/mol   
19
Electrochemical Equivalent
1.35 g/amp-hr   
99+
4.02 g/amp-hr   
7
Electron Work Function
4.25 eV   
21
4.26 eV   
20
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Ionization, Solubility   
Atomic Properties
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   
28
61   
99+
Number of Electrons
73   
99+
47   
99+
Radius of an Atom
  
  
Atomic Radius
146.00 pm   
35
144.00 pm   
36
Covalent Radius
170.00 pm   
25
145.00 pm   
39
Van der Waals Radius
200.00 pm   
28
172.00 pm   
38
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   
20
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
10.49 g/cm3   
35
Density When Liquid (at m.p.)
15.00 g/cm3   
9
9.32 g/cm3   
21
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
14
Vapor Pressure at 2000 K
0.00 (Pa)   
31
Not Available   
Elasticity properties
  
  
Shear Modulus
69.00 GPa   
13
30.00 GPa   
23
Bulk Modulus
200.00 GPa   
8
100.00 GPa   
16
Young's Modulus
186.00 GPa   
13
83.00 GPa   
23
Poisson Ratio
0.34   
10
0.37   
7
Other Mechanical Properties
Ductile   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
16.65   
11
10.50   
26
Magnetic Ordering
Paramagnetic   
Diamagnetic   
Susceptibility
Not Available   
0.00   
5
Electrical Properties
  
  
Electrical Property
Conductor   
Conductor   
Resistivity
131.00 nΩ·m   
25
15.87 nΩ·m   
99+
Electrical Conductivity
0.08 106/cm Ω   
27
0.63 106/cm Ω   
1
Electron Affinity
31.00 kJ/mol   
29
125.60 kJ/mol   
5
Thermal Properties
Specific Heat
0.14 J/(kg K)   
37
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
Not Available   
Not Available   
Thermal Expansion
6.30 µm/(m·K)   
99+
18.90 µm/(m·K)   
23
Enthalpy
  
  
Enthalpy of Vaporization
753.10 kJ/mol   
2
255.10 kJ/mol   
37
Enthalpy of Fusion
31.40 kJ/mol   
3
11.30 kJ/mol   
31
Enthalpy of Atomization
782.00 kJ/mol   
3
284.50 kJ/mol   
37
Standard Molar Entropy
41.50 J/mol.K   
37
42.60 J/mol.K   
35
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