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Cesium vs Uranium

Cesium
Uranium
Uranium vs Cesium


Periodic Table
Symbol
Cs   
U   
Group Number
1   
17
0   
18
Period Number
6   
7   
Block
s block   
f block   
Element Family
Alkali   
Actinide   
CAS Number
7440462   
40
7440611   
28
Space Group Name
Im_ 3m   
Cmcm   
Space Group Number
229.00   
1
63.00   
10
Facts
Interesting Facts
Not Available   
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
Earth's crust, Mining, Ores of Minerals   
History
  
  
Who Discovered
Robert Bunsen and Gustav Kirchhoff   
Not Available   
Discovery
In 1860   
In 1789   
Abundance
  
  
Abundance In Universe
8 * 10-8 %   
24
2 * 10-8 %   
29
Abundance In Sun
~0.0000008 %   
20
~0.0000001 %   
26
Abundance In Meteorites
0.00 %   
38
0.00 %   
99+
Abundance In Earth's Crust
0.00 %   
35
0.00 %   
36
Abundance In Oceans
0.00 %   
17
0.00 %   
11
Abundance In Humans
0.00 %   
17
Not Available   
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.
  
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Ammunition Industry, Chemical Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Mildly Toxic   
Toxic   
Present in Human Body
Yes   
No   
In Blood
0.00 Blood/mg dm-3   
28
Not Available   
In Bone
0.05 p.p.m.   
26
Not Available   
Physical Properties
Melting Point
28.50 °C   
99+
1,132.00 °C   
39
Boiling Point
678.40 °C   
99+
3,818.00 °C   
16
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gold   
Silvery Gray   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
0.20   
25
6.00   
6
Brinell Hardness
0.14 MPa   
99+
2,350.00 MPa   
2
Vickers Hardness
Not Available   
1,960.00 MPa   
2
Speed of Sound
Not Available   
3,155.00 m/s   
25
Optical Properties
  
  
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
Cs   
U   
Isotopes
  
  
Known Isotopes
36   
3
25   
14
Electronegativity
  
  
Pauling Electronegativity
0.79   
99+
1.38   
28
Sanderson Electronegativity
0.22   
33
Not Available   
Allred Rochow Electronegativity
0.86   
99+
1.22   
26
Mulliken-Jaffe Electronegativity
0.62   
26
Not Available   
Allen Electronegativity
0.66   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.21   
2
2.62   
26
Ionization Energies
  
  
1st Energy Level
375.70 kJ/mol   
99+
597.60 kJ/mol   
99+
2nd Energy Level
2,234.30 kJ/mol   
8
1,420.00 kJ/mol   
99+
3rd Energy Level
3,400.00 kJ/mol   
16
1,900.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,145.00 kJ/mol   
99+
Electrochemical Equivalent
4.96 g/amp-hr   
3
1.48 g/amp-hr   
99+
Electron Work Function
2.14 eV   
99+
3.63 eV   
30
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
55   
99+
92   
26
Electron Configuration
[Xe] 6s1   
[Rn] 5f3 6d1 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Orthorhombic (ORTH)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
ORTH-Crystal-Structure-of-Uranium.jpg#100   
Atom
  
  
Number of Protons
55   
99+
92   
26
Number of Neutrons
78   
99+
146   
13
Number of Electrons
55   
99+
92   
26
Radius of an Atom
  
  
Atomic Radius
265.00 pm   
1
156.00 pm   
29
Covalent Radius
244.00 pm   
2
196.00 pm   
14
Van der Waals Radius
343.00 pm   
2
186.00 pm   
33
Atomic Weight
132.91 amu   
99+
238.03 amu   
21
Atomic Volume
71.07 cm3/mol   
1
12.59 cm3/mol   
40
Adjacent Atomic Numbers
  
  
Previous Element
Tin
  
Protactinium
  
Next Element
Barium
  
Neptunium
  
Valence Electron Potential
8.62 (-eV)   
99+
170.00 (-eV)   
4
Lattice Constant
614.10 pm   
5
295.08 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
1.93 g/cm3   
99+
19.10 g/cm3   
17
Density When Liquid (at m.p.)
1.84 g/cm3   
99+
17.30 g/cm3   
7
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available   
0.01 (Pa)   
20
Elasticity properties
  
  
Shear Modulus
Not Available   
111.00 GPa   
10
Bulk Modulus
1.60 GPa   
99+
100.00 GPa   
16
Young's Modulus
1.70 GPa   
99+
208.00 GPa   
10
Poisson Ratio
Not Available   
0.23   
30
Other Mechanical Properties
Ductile   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
1.87   
99+
18.80   
10
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Semiconductor   
Poor Conductor   
Resistivity
205.00 nΩ·m   
17
0.28 nΩ·m   
99+
Electrical Conductivity
0.05 106/cm Ω   
35
0.04 106/cm Ω   
37
Electron Affinity
45.50 kJ/mol   
25
Not Available   
Thermal Properties
Specific Heat
0.24 J/(kg K)   
23
0.12 J/(kg K)   
40
Molar Heat Capacity
32.21 J/mol·K   
4
27.67 J/mol·K   
15
Thermal Conductivity
35.90 W/m·K   
36
27.50 W/m·K   
40
Critical Temperature
1,938.00 K   
5
Not Available   
Thermal Expansion
97.00 µm/(m·K)   
1
13.90 µm/(m·K)   
27
Enthalpy
  
  
Enthalpy of Vaporization
65.90 kJ/mol   
99+
477.00 kJ/mol   
13
Enthalpy of Fusion
2.10 kJ/mol   
99+
15.48 kJ/mol   
19
Enthalpy of Atomization
78.20 kJ/mol   
99+
489.50 kJ/mol   
14
Standard Molar Entropy
85.20 J/mol.K   
3
50.20 J/mol.K   
31
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