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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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