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Zinc vs Silver


Silver vs Zinc


Periodic Table

Symbol
Zn   
Ag   

Group Number
12   
6
11   
7

Period Number
4   
5   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
7440666   
24
7440224   
99+

Space Group Name
P63/mmc   
Fm_ 3m   

Space Group Number
194.00   
5
225.00   
2

Facts

Interesting Facts
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • The leading producers of Zinc metal are Australia, Canada, China, U.S.A and Peru.
  
  • 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
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
Earth's crust, Found in Minerals, Ores of metals   

History
  
  

Who Discovered
Indian metallurgists   
Unknown   

Discovery
Before 1000 BCE   
Before 5000 BC   

Abundance
  
  

Abundance In Universe
3 * 10-5 %   
11
6 * 10-8 %   
26

Abundance In Sun
~0.0002 %   
10
~0.0000001 %   
26

Abundance In Meteorites
0.02 %   
12
0.00 %   
38

Abundance In Earth's Crust
0.01 %   
16
0.00 %   
99+

Abundance In Oceans
0.00 %   
10
0.00 %   
19

Abundance In Humans
0.00 %   
6
Not Available   

Uses

Uses & Benefits
  • It is mainly used for Galvanizing other metals.
  • It is also used for manufacturing die-casting and it is very essential for automobile industry.
  
  • 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
Pharmaceutical Industry   
Dentistry, Pharmaceutical Industry   

Other Uses
Alloys   
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   

Biological Properties
  
  

Toxicity
Highly Toxic   
Non Toxic   

Present in Human Body
Yes   
Yes   

In Blood
7.00 Blood/mg dm-3   
6
0.00 Blood/mg dm-3   
29

In Bone
170.00 p.p.m.   
6
0.44 p.p.m.   
20

Physical Properties

Melting Point
419.58 °C   
99+
961.93 °C   
99+

Boiling Point
907.00 °C   
99+
2,212.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
2.50   
14
2.50   
14

Brinell Hardness
327.00 MPa   
32
251.00 MPa   
37

Vickers Hardness
Not Available   
229.00 MPa   
30

Speed of Sound
3,850.00 m/s   
18
2,680.00 m/s   
34

Optical Properties
  
  

Refractive Index
1.00   
2
Not Available   

Reflectivity
80.00 %   
5
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
Zn   
Ag   

Isotopes
  
  

Known Isotopes
25   
14
36   
3

Electronegativity
  
  

Pauling Electronegativity
1.65   
19
1.93   
9

Sanderson Electronegativity
2.23   
6
1.83   
11

Allred Rochow Electronegativity
1.66   
7
1.42   
18

Mulliken-Jaffe Electronegativity
1.65   
11
1.47   
15

Allen Electronegativity
1.59   
22
1.87   
7

Electropositivity
  
  

Pauling Electropositivity
2.35   
35
2.07   
99+

Ionization Energies
  
  

1st Energy Level
906.40 kJ/mol   
6
731.00 kJ/mol   
27

2nd Energy Level
1,733.30 kJ/mol   
27
2,070.00 kJ/mol   
11

3rd Energy Level
3,833.00 kJ/mol   
12
3,361.00 kJ/mol   
19

4th Energy Level
5,731.00 kJ/mol   
11
Not Available   

5th Energy Level
7,970.00 kJ/mol   
9
Not Available   

6th Energy Level
10,400.00 kJ/mol   
9
Not Available   

7th Energy level
12,900.00 kJ/mol   
9
Not Available   

8th Energy Level
16,800.00 kJ/mol   
6
Not Available   

9th Energy Level
19,600.00 kJ/mol   
8
Not Available   

10th Energy Level
23,000.00 kJ/mol   
10
Not Available   

11th Energy Level
26,400.00 kJ/mol   
11
Not Available   

12th Energy Level
29,990.00 kJ/mol   
11
Not Available   

13th Energy Level
40,490.00 kJ/mol   
5
Not Available   

14th Energy Level
43,800.00 kJ/mol   
6
Not Available   

15th Energy Level
47,300.00 kJ/mol   
8
Not Available   

16th Energy Level
52,300.00 kJ/mol   
9
Not Available   

17th Energy Level
55,900.00 kJ/mol   
10
Not Available   

18th Energy Level
59,700.00 kJ/mol   
11
Not Available   

19th Energy Level
67,300.00 kJ/mol   
10
Not Available   

20th Energy Level
171,200.00 kJ/mol   
1
Not Available   

21st Energy Level
179,100.00 kJ/mol   
1
Not Available   

Electrochemical Equivalent
1.22 g/amp-hr   
99+
4.02 g/amp-hr   
7

Electron Work Function
4.33 eV   
17
4.26 eV   
20

Other Chemical Properties
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes   
Chemical Stability, Ionization, Solubility   

Atomic Properties

Atomic Number
30   
99+
47   
99+

Electron Configuration
[Ar] 3d10 4s2   
[Kr] 4d10 5s1   

Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Zinc.jpg#100   
FCC-Crystal-Structure-of-Silver.jpg#100   

Atom
  
  

Number of Protons
30   
99+
47   
99+

Number of Neutrons
35   
99+
61   
99+

Number of Electrons
30   
99+
47   
99+

Radius of an Atom
  
  

Atomic Radius
134.00 pm   
99+
144.00 pm   
36

Covalent Radius
122.00 pm   
99+
145.00 pm   
39

Van der Waals Radius
139.00 pm   
99+
172.00 pm   
38

Atomic Weight
65.38 amu   
99+
107.87 amu   
99+

Atomic Volume
9.20 cm3/mol   
99+
10.30 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Copper
  
Palladium
  

Next Element
Gallium
  
Cadmium
  

Valence Electron Potential
38.90 (-eV)   
99+
11.40 (-eV)   
99+

Lattice Constant
266.49 pm   
99+
408.53 pm   
20

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
7.14 g/cm3   
99+
10.49 g/cm3   
35

Density When Liquid (at m.p.)
6.57 g/cm3   
37
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

Elasticity properties
  
  

Shear Modulus
43.00 GPa   
18
30.00 GPa   
23

Bulk Modulus
70.00 GPa   
19
100.00 GPa   
16

Young's Modulus
108.00 GPa   
19
83.00 GPa   
23

Poisson Ratio
0.25   
24
0.37   
7

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
6.90   
99+
10.50   
26

Magnetic Ordering
Diamagnetic   
Diamagnetic   

Susceptibility
Not Available   
0.00   
5

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
59.00 nΩ·m   
40
15.87 nΩ·m   
99+

Electrical Conductivity
0.17 106/cm Ω   
12
0.63 106/cm Ω   
1

Electron Affinity
0.00 kJ/mol   
40
125.60 kJ/mol   
5

Thermal Properties

Specific Heat
0.39 J/(kg K)   
14
0.24 J/(kg K)   
25

Molar Heat Capacity
25.47 J/mol·K   
39
25.35 J/mol·K   
99+

Thermal Conductivity
116.00 W/m·K   
14
429.00 W/m·K   
1

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
30.20 µm/(m·K)   
11
18.90 µm/(m·K)   
23

Enthalpy
  
  

Enthalpy of Vaporization
7.32 kJ/mol   
99+
255.10 kJ/mol   
37

Enthalpy of Fusion
7.32 kJ/mol   
99+
11.30 kJ/mol   
31

Enthalpy of Atomization
129.70 kJ/mol   
99+
284.50 kJ/mol   
37

Standard Molar Entropy
41.60 J/mol.K   
36
42.60 J/mol.K   
35

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