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Silver vs Rhenium


Rhenium vs Silver


Periodic Table

Symbol
Ag  
Re  

Group Number
11  
7
7  
11

Period Number
5  
6  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440224  
99+
7440155  
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.
  
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  

Sources
Earth's crust, Found in Minerals, Ores of metals  
Found in Minerals, Mining, Ores of Minerals  

History
  
  

Who Discovered
-  
Masataka Ogawa  

Discovery
Before 5000 BC  
In 1908  

Abundance
  
  

Abundance In Universe
0.00 %  
27
0.00 %  
30

Abundance In Sun
0.00 %  
26
0.00 %  
29

Abundance In Meteorites
0.00 %  
38
0.00 %  
99+

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

Abundance In Oceans
0.00 %  
19
0.00 %  
34

Abundance In Humans
0.00 %  
24
0.00 %  
24

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.
  
  • Alloys of Rhenium are used as an electric contact material. It can resist withstand arc corrosion.
  • Its catalysts are used in hydrogenation of fine chemicals. Its Alloy with nickel is used to produce turbine blades.
  

Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry  
Aerospace Industry, Automobile 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  
Low Toxic  

Present in Human Body
Yes  
No  

In Blood
0.00 Blood/mg dm-3  
29
0.00 Blood/mg dm-3  
37

In Bone
0.44 p.p.m.  
24
0.00 p.p.m.  
99+

Physical

Melting Point
961.93 °C  
99+
3,180.00 °C  
2

Boiling Point
2,212.00 °C  
99+
5,627.00 °C  
2

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
Silvery Gray  

Luster
Metallic  
Metallic  

Hardness
  
  

Mohs Hardness
2.50  
15
7.00  
3

Brinell Hardness
251.00 MPa  
99+
1,320.00 MPa  
8

Vickers Hardness
229.00 MPa  
99+
1,350.00 MPa  
12

Speed of Sound
2,680.00 m/s  
99+
4,700.00 m/s  
19

Optical Properties
  
  

Refractive Index
0.16  
99+
1.90  
18

Reflectivity
97.00 %  
1
70.00 %  
13

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Ag  
Re  

Isotopes
  
  

Known Isotopes
36  
3
33  
6

Electronegativity
  
  

Pauling Electronegativity
1.93  
10
1.90  
12

Sanderson Electronegativity
1.83  
14
1.90  
13

Allred Rochow Electronegativity
1.42  
19
1.46  
16

Mulliken-Jaffe Electronegativity
1.47  
28
1.90  
13

Allen Electronegativity
1.87  
10
1.60  
24

Electropositivity
  
  

Pauling Electropositivity
2.07  
99+
2.10  
99+

Ionization Energies
  
  

1st Energy Level
731.00 kJ/mol  
27
760.00 kJ/mol  
20

2nd Energy Level
2,070.00 kJ/mol  
11
1,260.00 kJ/mol  
99+

3rd Energy Level
3,361.00 kJ/mol  
19
2,510.00 kJ/mol  
99+

4th Energy Level
7,310.00 kJ/mol  
10
3,640.00 kJ/mol  
99+

5th Energy Level
7,310.00 kJ/mol  
24
7,600.00 kJ/mol  
20

6th Energy Level
7,310.00 kJ/mol  
39
7,600.00 kJ/mol  
37

7th Energy level
7,310.00 kJ/mol  
33
7,600.00 kJ/mol  
31

8th Energy Level
7,310.00 kJ/mol  
31
5,560.00 kJ/mol  
99+

9th Energy Level
7,310.00 kJ/mol  
27
5,560.00 kJ/mol  
99+

10th Energy Level
7,310.00 kJ/mol  
32
7,600.00 kJ/mol  
31

11th Energy Level
7,310.00 kJ/mol  
31
7,600.00 kJ/mol  
30

12th Energy Level
7,310.00 kJ/mol  
99+
7,600.00 kJ/mol  
99+

13th Energy Level
7,310.00 kJ/mol  
25
7,600.00 kJ/mol  
23

14th Energy Level
731.00 kJ/mol  
99+
7,600.00 kJ/mol  
20

15th Energy Level
73,100.00 kJ/mol  
22
76,000.00 kJ/mol  
20

16th Energy Level
73,100.00 kJ/mol  
17
76,000.00 kJ/mol  
15

17th Energy Level
731.00 kJ/mol  
38
760.10 kJ/mol  
36

18th Energy Level
7,310.00 kJ/mol  
28
7,600.00 kJ/mol  
26

19th Energy Level
731.00 kJ/mol  
35
760.40 kJ/mol  
33

20th Energy Level
731.00 kJ/mol  
29
760.00 kJ/mol  
27

21st Energy Level
731.00 kJ/mol  
99+
760.00 kJ/mol  
99+

22nd Energy Level
731.00 kJ/mol  
23
760.00 kJ/mol  
21

23rd Energy Level
731.00 kJ/mol  
99+
760.00 kJ/mol  
99+

24th Energy Level
731.00 kJ/mol  
22
760.00 kJ/mol  
18

25th Energy Level
731.00 kJ/mol  
22
760.00 kJ/mol  
18

26th Energy Level
731.00 kJ/mol  
22
760.00 kJ/mol  
18

27th Energy Level
731.00 kJ/mol  
21
760.00 kJ/mol  
17

28th Energy Level
731.00 kJ/mol  
27
760.00 kJ/mol  
23

29th Energy Level
731.00 kJ/mol  
28
760.00 kJ/mol  
24

30th Energy Level
731.00 kJ/mol  
22
760.00 kJ/mol  
18

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

Electron Work Function
4.26 eV  
27
4.96 eV  
11

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

Atomic

Atomic Number
47  
99+
75  
99+

Electron Configuration
[Kr] 4d10 5s1  
[Xe] 4f14 5d5 6s2  

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

Crystal Lattice
FCC-Crystal-Structure-of-Silver.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
47  
99+
75  
40

Number of Neutrons
61  
99+
111  
27

Number of Electrons
47  
99+
75  
40

Radius of an Atom
  
  

Atomic Radius
144.00 pm  
38
137.00 pm  
99+

Covalent Radius
145.00 pm  
99+
151.00 pm  
36

Van der Waals Radius
172.00 pm  
99+
200.00 pm  
35

Atomic Weight
107.87 amu  
99+
186.21 amu  
36

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

Adjacent Atomic Numbers
  
  

Previous Element
Palladium
  
Tungsten
  

Next Element
Cadmium
  
Osmium
  

Valence Electron Potential
11.40 (-eV)  
99+
180.00 (-eV)  
3

Lattice Constant
408.53 pm  
23
276.10 pm  
99+

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

Lattice C/A Ratio
1.59  
26
1.62  
17

Mechanical

Density
  
  

Density At Room Temperature
10.49 g/cm3  
37
21.02 g/cm3  
12

Density When Liquid (at m.p.)
9.32 g/cm3  
99+
18.90 g/cm3  
14

Tensile Strength
170.00 MPa  
21
1,070.00 MPa  
3

Viscosity
0.00  
23
0.00  
25

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
14
0.00 (Pa)  
37

Vapor Pressure at 2000 K
0.00 (Pa)  
38
0.00 (Pa)  
40

Elasticity properties
  
  

Shear Modulus
30.00 GPa  
27
178.00 GPa  
3

Bulk Modulus
100.00 GPa  
16
370.00 GPa  
2

Young's Modulus
83.00 GPa  
25
463.00 GPa  
2

Poisson Ratio
0.37  
7
0.30  
14

Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
10.50  
39
21.02  
14

Magnetic Ordering
Diamagnetic  
Paramagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
8

Susceptibility
0.00  
32
0.00  
26

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
15.87 nΩ·m  
99+
193.00 nΩ·m  
20

Electrical Conductivity
0.63 106/cm Ω  
1
0.05 106/cm Ω  
38

Electron Affinity
125.60 kJ/mol  
5
14.50 kJ/mol  
99+

Thermal

Specific Heat
0.24 J/(kg K)  
25
0.13 J/(kg K)  
40

Molar Heat Capacity
25.35 J/mol·K  
99+
25.48 J/mol·K  
99+

Thermal Conductivity
429.00 W/m·K  
1
48.00 W/m·K  
31

Critical Temperature
1,235.00 K  
99+
3,459.00 K  
2

Thermal Expansion
18.90 µm/(m·K)  
25
6.20 µm/(m·K)  
99+

Enthalpy
  
  

Enthalpy of Vaporization
255.10 kJ/mol  
99+
707.10 kJ/mol  
4

Enthalpy of Fusion
11.30 kJ/mol  
37
33.05 kJ/mol  
2

Enthalpy of Atomization
284.50 kJ/mol  
99+
791.00 kJ/mol  
2

Standard Molar Entropy
42.60 J/mol.K  
99+
36.90 J/mol.K  
99+

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