Home
 Compare Metals

Silver Cadmium Comparison

Silver
Cadmium
Cadmium Silver comparison


Periodic Table
Symbol
Ag  
Cd  
Group Number
11  
7
12  
6
Period Number
5  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440224  
99+
7440439  
99+
Space Group Name
Fm_ 3m  
P63/mmc  
Space Group Number
225.00  
3
194.00  
7
Facts
Interesting Facts
  • 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.
  
  • Naturally occurring minor elements include Cadmium.
  • Cadmium is released into atmosphere to control volcanic eruption and forest fires.
  • It is used for electroplating of Steel for corrosion resistance.
  • It can absorb neutrons and used in nuclear reactor to control atomic fission.
  
Sources
Earth's crust, Found in Minerals, Ores of metals  
Found As a By-product, Found in Minerals, Mining  
History
  
  
Who Discovered
-  
Karl Samuel Leberecht Hermann and Friedrich Stromeyer  
Discovery
Before 5000 BC  
In 1817  
Abundance
  
  
Abundance In Universe
0.00 %  
27
0.00 %  
23
Abundance In Sun
0.00 %  
26
0.00 %  
21
Abundance In Meteorites
0.00 %  
38
0.00 %  
31
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
0.00 %  
19
0.00 %  
28
Abundance In Humans
0.00 %  
24
0.00 %  
12
Uses
Uses & Benefits
  • Silver is mainly used for Jewelry and show piece.
  • It is used for manufacturing high quality mirrors due to its reflectivity property.
  
  • It has very limited uses as it is a toxic metal and it can cause birth defects, cancer, etc.
  • Almost 80% of Cadmium metal is used in Nickel cadmium Batteries and now it is getting replaced with nickel hydride.
  
Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry  
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
Dentistry, Pharmaceutical Industry  
-  
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys  
Biological Properties
  
  
Toxicity
Non Toxic  
Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
29
0.01 Blood/mg dm-3  
24
In Bone
0.44 p.p.m.  
24
1.80 p.p.m.  
16
Physical
Melting Point
961.93 °C  
99+
320.90 °C  
99+
Boiling Point
2,212.00 °C  
99+
765.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery Bluish-Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
2.50  
15
2.00  
17
Brinell Hardness
251.00 MPa  
99+
203.00 MPa  
99+
Vickers Hardness
229.00 MPa  
99+
90.00 MPa  
99+
Speed of Sound
2,680.00 m/s  
99+
2,310.00 m/s  
99+
Optical Properties
  
  
Refractive Index
0.16  
99+
1.71  
26
Reflectivity
97.00 %  
1
67.00 %  
16
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Ag  
Cd  
Isotopes
  
  
Known Isotopes
36  
3
34  
5
Electronegativity
  
  
Pauling Electronegativity
1.93  
10
1.69  
18
Sanderson Electronegativity
1.83  
14
1.98  
11
Allred Rochow Electronegativity
1.42  
19
1.46  
16
Mulliken-Jaffe Electronegativity
1.47  
28
1.53  
25
Allen Electronegativity
1.87  
10
1.52  
30
Electropositivity
  
  
Pauling Electropositivity
2.07  
99+
2.31  
37
Ionization Energies
  
  
1st Energy Level
731.00 kJ/mol  
27
867.80 kJ/mol  
11
2nd Energy Level
2,070.00 kJ/mol  
11
1,631.40 kJ/mol  
33
3rd Energy Level
3,361.00 kJ/mol  
19
3,616.00 kJ/mol  
13
4th Energy Level
7,310.00 kJ/mol  
10
867.80 kJ/mol  
99+
5th Energy Level
7,310.00 kJ/mol  
24
4,040.00 kJ/mol  
99+
6th Energy Level
7,310.00 kJ/mol  
39
8,640.00 kJ/mol  
28
7th Energy level
7,310.00 kJ/mol  
33
8,640.00 kJ/mol  
24
8th Energy Level
7,310.00 kJ/mol  
31
8,640.00 kJ/mol  
24
9th Energy Level
7,310.00 kJ/mol  
27
8,670.00 kJ/mol  
22
10th Energy Level
7,310.00 kJ/mol  
32
8,650.00 kJ/mol  
25
11th Energy Level
7,310.00 kJ/mol  
31
8,670.00 kJ/mol  
22
12th Energy Level
7,310.00 kJ/mol  
99+
86,400.00 kJ/mol  
3
13th Energy Level
7,310.00 kJ/mol  
25
8,640.00 kJ/mol  
17
14th Energy Level
731.00 kJ/mol  
99+
8,650.00 kJ/mol  
15
15th Energy Level
73,100.00 kJ/mol  
22
86,400.00 kJ/mol  
10
16th Energy Level
73,100.00 kJ/mol  
17
86,400.00 kJ/mol  
10
17th Energy Level
731.00 kJ/mol  
38
864.90 kJ/mol  
28
18th Energy Level
7,310.00 kJ/mol  
28
8,670.00 kJ/mol  
17
19th Energy Level
731.00 kJ/mol  
35
867.80 kJ/mol  
26
20th Energy Level
731.00 kJ/mol  
29
865.00 kJ/mol  
16
21st Energy Level
731.00 kJ/mol  
99+
8,670.00 kJ/mol  
10
22nd Energy Level
731.00 kJ/mol  
23
864.00 kJ/mol  
14
23rd Energy Level
731.00 kJ/mol  
99+
864.90 kJ/mol  
40
24th Energy Level
731.00 kJ/mol  
22
864.90 kJ/mol  
10
25th Energy Level
731.00 kJ/mol  
22
864.00 kJ/mol  
8
26th Energy Level
731.00 kJ/mol  
22
864.90 kJ/mol  
8
27th Energy Level
731.00 kJ/mol  
21
864.90 kJ/mol  
8
28th Energy Level
731.00 kJ/mol  
27
864.90 kJ/mol  
11
29th Energy Level
731.00 kJ/mol  
28
864.90 kJ/mol  
12
30th Energy Level
731.00 kJ/mol  
22
864.00 kJ/mol  
8
Electrochemical Equivalent
4.02 g/amp-hr  
7
2.10 g/amp-hr  
31
Electron Work Function
4.26 eV  
27
4.22 eV  
29
Other Chemical Properties
Chemical Stability, Ionization, Solubility  
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
47  
99+
48  
99+
Electron Configuration
[Kr] 4d10 5s1  
[Kr] 4d10 5s2  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Silver.jpg#100  
HCP-Crystal-Structure-of-Cadmium.jpg#100  
Atom
  
  
Number of Protons
47  
99+
48  
99+
Number of Neutrons
61  
99+
64  
99+
Number of Electrons
47  
99+
48  
99+
Radius of an Atom
  
  
Atomic Radius
144.00 pm  
38
151.00 pm  
34
Covalent Radius
145.00 pm  
99+
144.00 pm  
99+
Van der Waals Radius
172.00 pm  
99+
158.00 pm  
99+
Atomic Weight
107.87 amu  
99+
112.41 amu  
99+
Atomic Volume
10.30 cm3/mol  
99+
13.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Palladium
  
Silver
  
Next Element
Cadmium
  
Indium
  
Valence Electron Potential
11.40 (-eV)  
99+
30.00 (-eV)  
99+
Lattice Constant
408.53 pm  
23
297.94 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.59  
26
1.89  
2
Mechanical
Density
  
  
Density At Room Temperature
10.49 g/cm3  
37
8.65 g/cm3  
99+
Density When Liquid (at m.p.)
9.32 g/cm3  
99+
8.00 g/cm3  
99+
Tensile Strength
170.00 MPa  
21
62.00 MPa  
34
Viscosity
0.00  
23
0.00  
13
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
14
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
38
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
30.00 GPa  
27
19.00 GPa  
99+
Bulk Modulus
100.00 GPa  
16
42.00 GPa  
34
Young's Modulus
83.00 GPa  
25
50.00 GPa  
39
Poisson Ratio
0.37  
7
0.30  
14
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
10.50  
39
8.65  
99+
Magnetic Ordering
Diamagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
10
Susceptibility
0.00  
32
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Semiconductor  
Resistivity
15.87 nΩ·m  
99+
72.70 nΩ·m  
36
Electrical Conductivity
0.63 106/cm Ω  
1
0.14 106/cm Ω  
17
Electron Affinity
125.60 kJ/mol  
5
0.00 kJ/mol  
99+
Thermal
Specific Heat
0.24 J/(kg K)  
25
0.23 J/(kg K)  
26
Molar Heat Capacity
25.35 J/mol·K  
99+
26.02 J/mol·K  
40
Thermal Conductivity
429.00 W/m·K  
1
96.60 W/m·K  
16
Critical Temperature
1,235.00 K  
99+
594.00 K  
99+
Thermal Expansion
18.90 µm/(m·K)  
25
30.80 µm/(m·K)  
10
Enthalpy
  
  
Enthalpy of Vaporization
255.10 kJ/mol  
99+
100.00 kJ/mol  
99+
Enthalpy of Fusion
11.30 kJ/mol  
37
6.19 kJ/mol  
99+
Enthalpy of Atomization
284.50 kJ/mol  
99+
113.00 kJ/mol  
99+
Standard Molar Entropy
42.60 J/mol.K  
99+
51.80 J/mol.K  
38
Summary >>
<< Thermal

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!