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Cesium Gold Comparison

Cesium
Gold
Gold Cesium comparison


Periodic Table
Symbol
Cs  
Au  
Group Number
1  
17
11  
7
Period Number
6  
6  
Block
s block  
d block  
Element Family
Alkali  
Transition Metal  
CAS Number
7440462  
40
7440575  
31
Space Group Name
Im_ 3m  
Fm_ 3m  
Space Group Number
229.00  
2
225.00  
3
Facts
Interesting Facts
Cesium is the most alkaline metal and is used in atomic clocks.  
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Mining, Ores of metals  
History
  
  
Who Discovered
Robert Bunsen and Gustav Kirchhoff  
-  
Discovery
In 1860  
Before 6000 BCE  
Abundance
  
  
Abundance In Universe
0.00 %  
25
0.00 %  
27
Abundance In Sun
0.00 %  
20
0.00 %  
26
Abundance In Meteorites
0.00 %  
38
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
35
0.00 %  
99+
Abundance In Oceans
0.00 %  
17
0.00 %  
21
Abundance In Humans
0.00 %  
20
0.00 %  
21
Uses
Uses & Benefits
  • The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
  • In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
  
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry  
Other Uses
Alloys  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Mildly Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
28
0.00 Blood/mg dm-3  
38
In Bone
0.05 p.p.m.  
31
0.02 p.p.m.  
35
Physical
Melting Point
28.50 °C  
99+
1,064.43 °C  
99+
Boiling Point
678.40 °C  
99+
2,807.00 °C  
37
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gold  
Gold  
Luster
-  
Metallic  
Hardness
  
  
Mohs Hardness
0.20  
27
2.50  
15
Brinell Hardness
0.14 MPa  
99+
194.00 MPa  
99+
Vickers Hardness
0.14 MPa  
99+
216.00 MPa  
99+
Speed of Sound
1,630.00 m/s  
99+
2,030.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.93  
17
0.47  
99+
Reflectivity
35.00 %  
34
95.00 %  
2
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Cs  
Au  
Isotopes
  
  
Known Isotopes
36  
3
36  
3
Electronegativity
  
  
Pauling Electronegativity
0.79  
99+
2.54  
2
Sanderson Electronegativity
0.22  
99+
1.50  
18
Allred Rochow Electronegativity
0.86  
99+
1.42  
19
Mulliken-Jaffe Electronegativity
0.62  
99+
1.87  
15
Allen Electronegativity
0.66  
99+
1.92  
7
Electropositivity
  
  
Pauling Electropositivity
3.21  
2
1.46  
99+
Ionization Energies
  
  
1st Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
8
2nd Energy Level
2,234.30 kJ/mol  
8
1,980.00 kJ/mol  
12
3rd Energy Level
3,400.00 kJ/mol  
16
2,856.00 kJ/mol  
33
4th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
99+
5th Energy Level
3,750.00 kJ/mol  
99+
8,901.00 kJ/mol  
6
6th Energy Level
3,750.00 kJ/mol  
99+
8,901.00 kJ/mol  
24
7th Energy level
3,750.00 kJ/mol  
99+
8,901.00 kJ/mol  
21
8th Energy Level
3,760.00 kJ/mol  
99+
8,900.00 kJ/mol  
20
9th Energy Level
3,750.00 kJ/mol  
99+
8,901.00 kJ/mol  
20
10th Energy Level
3,757.00 kJ/mol  
99+
8,901.00 kJ/mol  
21
11th Energy Level
3,757.00 kJ/mol  
99+
8,901.00 kJ/mol  
19
12th Energy Level
3,750.00 kJ/mol  
99+
8,900.00 kJ/mol  
39
13th Energy Level
3,750.00 kJ/mol  
99+
8,900.00 kJ/mol  
14
14th Energy Level
3,750.00 kJ/mol  
99+
890.10 kJ/mol  
99+
15th Energy Level
37,500.00 kJ/mol  
99+
89,000.00 kJ/mol  
7
16th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
99+
17th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
25
18th Energy Level
3,757.00 kJ/mol  
99+
8,901.00 kJ/mol  
14
19th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
23
20th Energy Level
375.00 kJ/mol  
99+
890.00 kJ/mol  
13
21st Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
35
22nd Energy Level
375.00 kJ/mol  
99+
890.00 kJ/mol  
11
23rd Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
38
24th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
6
25th Energy Level
375.70 kJ/mol  
99+
890.00 kJ/mol  
5
26th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
5
27th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
4
28th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
7
29th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
8
30th Energy Level
375.70 kJ/mol  
99+
890.10 kJ/mol  
5
Electrochemical Equivalent
4.96 g/amp-hr  
3
2.45 g/amp-hr  
25
Electron Work Function
2.14 eV  
99+
5.10 eV  
8
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility  
Chemical Stability, Ionization, Solubility  
Atomic
Atomic Number
55  
99+
79  
37
Electron Configuration
[Xe] 6s1  
[Xe] 4f14 5d10 6s1  
Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Gold.jpg#100  
Atom
  
  
Number of Protons
55  
99+
79  
37
Number of Neutrons
78  
99+
118  
24
Number of Electrons
55  
99+
79  
37
Radius of an Atom
  
  
Atomic Radius
265.00 pm  
2
151.00 pm  
34
Covalent Radius
244.00 pm  
2
144.00 pm  
99+
Van der Waals Radius
343.00 pm  
2
166.00 pm  
99+
Atomic Weight
132.91 amu  
99+
196.97 amu  
33
Atomic Volume
71.07 cm3/mol  
1
10.20 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Tin
  
Platinum
  
Next Element
Barium
  
Mercury
  
Valence Electron Potential
8.62 (-eV)  
99+
43.40 (-eV)  
99+
Lattice Constant
614.10 pm  
5
407.82 pm  
24
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.87  
3
1.61  
18
Mechanical
Density
  
  
Density At Room Temperature
1.93 g/cm3  
99+
19.30 g/cm3  
15
Density When Liquid (at m.p.)
1.84 g/cm3  
99+
17.31 g/cm3  
16
Tensile Strength
15.00 MPa  
99+
120.00 MPa  
27
Viscosity
0.00  
25
0.00  
23
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
25
Vapor Pressure at 2000 K
0.00 (Pa)  
30
67.00 (Pa)  
4
Elasticity properties
  
  
Shear Modulus
30.00 GPa  
27
27.00 GPa  
34
Bulk Modulus
1.60 GPa  
99+
180.00 GPa  
9
Young's Modulus
1.70 GPa  
99+
79.00 GPa  
26
Poisson Ratio
0.35  
9
0.40  
4
Other Mechanical Properties
Ductile  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
1.87  
99+
19.32  
17
Magnetic Ordering
Paramagnetic  
Diamagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
10
Susceptibility
0.00  
24
0.00  
22
Electrical Properties
  
  
Electrical Property
Semiconductor  
Conductor  
Resistivity
205.00 nΩ·m  
17
2.20 nΩ·m  
99+
Electrical Conductivity
0.05 106/cm Ω  
40
0.45 106/cm Ω  
3
Electron Affinity
45.50 kJ/mol  
30
222.80 kJ/mol  
1
Thermal
Specific Heat
0.24 J/(kg K)  
23
0.13 J/(kg K)  
40
Molar Heat Capacity
32.21 J/mol·K  
6
25.42 J/mol·K  
99+
Thermal Conductivity
35.90 W/m·K  
37
318.00 W/m·K  
3
Critical Temperature
1,938.00 K  
22
1,337.00 K  
99+
Thermal Expansion
97.00 µm/(m·K)  
1
14.20 µm/(m·K)  
29
Enthalpy
  
  
Enthalpy of Vaporization
65.90 kJ/mol  
99+
324.40 kJ/mol  
99+
Enthalpy of Fusion
2.10 kJ/mol  
99+
12.55 kJ/mol  
33
Enthalpy of Atomization
78.20 kJ/mol  
99+
364.00 kJ/mol  
34
Standard Molar Entropy
85.20 J/mol.K  
3
47.40 J/mol.K  
99+
Summary >>
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