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Silver vs Ruthenium


Ruthenium vs Silver


Periodic Table

Symbol
Ag  
Ru  

Group Number
11  
7
8  
10

Period Number
5  
5  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440224  
99+
7440188  
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.
  
  • Ruthenium element has been extracted from used nuclear fuel.
  • Ruthenium metal also produces as a by-product of the Nickel mining.
  

Sources
Earth's crust, Found in Minerals, Ores of metals  
By-product of Nickel Refining, Found in Minerals, Mining  

History
  
  

Who Discovered
-  
Karl Ernst Claus  

Discovery
Before 5000 BC  
In 1844  

Abundance
  
  

Abundance In Universe
0.00 %  
27
0.00 %  
21

Abundance In Sun
0.00 %  
26
0.00 %  
22

Abundance In Meteorites
0.00 %  
38
0.00 %  
26

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

Abundance In Oceans
0.00 %  
19
0.00 %  
38

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.
  
  • It is used for producing chip resistors and contact.
  • Ruthenium oxide is used to coat the anodes cells for chlorine production in chemical industry. It also works as catalysts for ammonia and acetic acid reaction.
  

Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  

Medical Uses
Dentistry, Pharmaceutical Industry  
Medical Research  

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+
2,250.00 °C  
8

Boiling Point
2,212.00 °C  
99+
3,900.00 °C  
14

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery White  
Silvery White  

Luster
Metallic  
Metallic  

Hardness
  
  

Mohs Hardness
2.50  
15
6.50  
5

Brinell Hardness
251.00 MPa  
99+
2,160.00 MPa  
3

Vickers Hardness
229.00 MPa  
99+
1,160.00 MPa  
14

Speed of Sound
2,680.00 m/s  
99+
5,970.00 m/s  
7

Optical Properties
  
  

Refractive Index
0.16  
99+
2.60  
4

Reflectivity
97.00 %  
1
6.00 %  
38

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Ag  
Ru  

Isotopes
  
  

Known Isotopes
36  
3
26  
13

Electronegativity
  
  

Pauling Electronegativity
1.93  
10
2.20  
5

Sanderson Electronegativity
1.83  
14
2.20  
8

Allred Rochow Electronegativity
1.42  
19
1.42  
19

Mulliken-Jaffe Electronegativity
1.47  
28
2.20  
6

Allen Electronegativity
1.87  
10
1.54  
28

Electropositivity
  
  

Pauling Electropositivity
2.07  
99+
1.80  
99+

Ionization Energies
  
  

1st Energy Level
731.00 kJ/mol  
27
710.20 kJ/mol  
32

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

3rd Energy Level
3,361.00 kJ/mol  
19
2,747.00 kJ/mol  
38

4th Energy Level
7,310.00 kJ/mol  
10
7,107.00 kJ/mol  
12

5th Energy Level
7,310.00 kJ/mol  
24
7,107.00 kJ/mol  
27

6th Energy Level
7,310.00 kJ/mol  
39
7,107.00 kJ/mol  
99+

7th Energy level
7,310.00 kJ/mol  
33
7,100.00 kJ/mol  
37

8th Energy Level
7,310.00 kJ/mol  
31
4,700.00 kJ/mol  
99+

9th Energy Level
7,310.00 kJ/mol  
27
5,600.00 kJ/mol  
99+

10th Energy Level
7,310.00 kJ/mol  
32
7,100.00 kJ/mol  
35

11th Energy Level
7,310.00 kJ/mol  
31
7,197.00 kJ/mol  
32

12th Energy Level
7,310.00 kJ/mol  
99+
7,190.00 kJ/mol  
99+

13th Energy Level
7,310.00 kJ/mol  
25
7,100.00 kJ/mol  
29

14th Energy Level
731.00 kJ/mol  
99+
710.00 kJ/mol  
99+

15th Energy Level
73,100.00 kJ/mol  
22
71,000.00 kJ/mol  
25

16th Energy Level
73,100.00 kJ/mol  
17
71,000.00 kJ/mol  
21

17th Energy Level
731.00 kJ/mol  
38
710.20 kJ/mol  
99+

18th Energy Level
7,310.00 kJ/mol  
28
7,100.00 kJ/mol  
31

19th Energy Level
731.00 kJ/mol  
35
710.20 kJ/mol  
38

20th Energy Level
731.00 kJ/mol  
29
710.00 kJ/mol  
32

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

22nd Energy Level
731.00 kJ/mol  
23
710.00 kJ/mol  
26

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

24th Energy Level
731.00 kJ/mol  
22
710.20 kJ/mol  
25

25th Energy Level
731.00 kJ/mol  
22
710.00 kJ/mol  
26

26th Energy Level
731.00 kJ/mol  
22
710.20 kJ/mol  
25

27th Energy Level
731.00 kJ/mol  
21
710.20 kJ/mol  
25

28th Energy Level
731.00 kJ/mol  
27
710.20 kJ/mol  
30

29th Energy Level
731.00 kJ/mol  
28
710.20 kJ/mol  
31

30th Energy Level
731.00 kJ/mol  
22
710.00 kJ/mol  
25

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

Electron Work Function
4.26 eV  
27
4.71 eV  
14

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

Atomic

Atomic Number
47  
99+
44  
99+

Electron Configuration
[Kr] 4d10 5s1  
[Kr] 4d7 5s1  

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

Crystal Lattice
FCC-Crystal-Structure-of-Silver.jpg#100  
rystal-Structure-of-Ruthenium.jpg#100  

Atom
  
  

Number of Protons
47  
99+
44  
99+

Number of Neutrons
61  
99+
57  
99+

Number of Electrons
47  
99+
44  
99+

Radius of an Atom
  
  

Atomic Radius
144.00 pm  
38
134.00 pm  
99+

Covalent Radius
145.00 pm  
99+
146.00 pm  
40

Van der Waals Radius
172.00 pm  
99+
200.00 pm  
35

Atomic Weight
107.87 amu  
99+
101.07 amu  
99+

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

Adjacent Atomic Numbers
  
  

Previous Element
Palladium
  

Next Element
Cadmium
  
Rhodium
  

Valence Electron Potential
11.40 (-eV)  
99+
64.00 (-eV)  
22

Lattice Constant
408.53 pm  
23
270.59 pm  
99+

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

Lattice C/A Ratio
1.59  
26
1.58  
33

Mechanical

Density
  
  

Density At Room Temperature
10.49 g/cm3  
37
12.45 g/cm3  
29

Density When Liquid (at m.p.)
9.32 g/cm3  
99+
10.65 g/cm3  
37

Tensile Strength
170.00 MPa  
21
50.00 MPa  
38

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)  
23

Elasticity properties
  
  

Shear Modulus
30.00 GPa  
27
173.00 GPa  
4

Bulk Modulus
100.00 GPa  
16
220.00 GPa  
7

Young's Modulus
83.00 GPa  
25
447.00 GPa  
3

Poisson Ratio
0.37  
7
0.30  
14

Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
10.50  
39
12.45  
31

Magnetic Ordering
Diamagnetic  
Paramagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
17

Susceptibility
0.00  
32
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
Conductor  

Resistivity
15.87 nΩ·m  
99+
71.00 nΩ·m  
38

Electrical Conductivity
0.63 106/cm Ω  
1
0.14 106/cm Ω  
18

Electron Affinity
125.60 kJ/mol  
5
101.30 kJ/mol  
11

Thermal

Specific Heat
0.24 J/(kg K)  
25
0.24 J/(kg K)  
24

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

Thermal Conductivity
429.00 W/m·K  
1
117.00 W/m·K  
13

Critical Temperature
1,235.00 K  
99+
2,607.00 K  
9

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

Enthalpy
  
  

Enthalpy of Vaporization
255.10 kJ/mol  
99+
567.80 kJ/mol  
13

Enthalpy of Fusion
11.30 kJ/mol  
37
25.50 kJ/mol  
7

Enthalpy of Atomization
284.50 kJ/mol  
99+
603.00 kJ/mol  
10

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

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