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Meitnerium Cesium Comparison

Meitnerium
Cesium
Cesium Meitnerium comparison


Periodic Table
Symbol
Mt   
Cs   
Group Number
9   
9
1   
17
Period Number
7   
6   
Block
d block   
s block   
Element Family
Probably Transition   
Alkali   
CAS Number
54038016   
10
7440462   
40
Space Group Name
Not Available   
Im_ 3m   
Space Group Number
Not Available   
229.00   
1
Facts
Interesting Facts
Not Available   
Not Available   
Sources
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung   
Robert Bunsen and Gustav Kirchhoff   
Discovery
In 1982   
In 1860   
Abundance
  
  
Abundance In Universe
Not Available   
8 * 10-8 %   
24
Abundance In Sun
~-9999 %   
~0.0000008 %   
20
Abundance In Meteorites
Not Available   
0.00 %   
38
Abundance In Earth's Crust
Not Available   
0.00 %   
35
Abundance In Oceans
Not Available   
0.00 %   
17
Abundance In Humans
Not Available   
0.00 %   
17
Uses
Uses & Benefits
  • Currently known uses of Meitnerium metal are limited to research purpose only.
  
  • 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.
  
Industrial Uses
NA   
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
NA   
Alloys   
Biological Properties
  
  
Toxicity
Unknown   
Mildly Toxic   
Present in Human Body
No   
Yes   
In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
28
In Bone
0.00 p.p.m.   
36
0.05 p.p.m.   
26
Physical Properties
Melting Point
Not Available   
28.50 °C   
99+
Boiling Point
Not Available   
678.40 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Unknown   
Silvery Gold   
Luster
Unknown Luster   
NA   
Hardness
  
  
Mohs Hardness
Not Available   
0.20   
25
Brinell Hardness
Not Available   
0.14 MPa   
99+
Speed of Sound
Not Available   
Not Available   
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
Mt   
Cs   
Isotopes
  
  
Known Isotopes
4   
33
36   
3
Electronegativity
  
  
Pauling Electronegativity
Not Available   
0.79   
99+
Sanderson Electronegativity
Not Available   
0.22   
33
Allred Rochow Electronegativity
Not Available   
0.86   
99+
Mulliken-Jaffe Electronegativity
Not Available   
0.62   
26
Allen Electronegativity
Not Available   
0.66   
99+
Electropositivity
  
  
Pauling Electropositivity
Not Available   
3.21   
2
Ionization Energies
  
  
1st Energy Level
800.80 kJ/mol   
15
375.70 kJ/mol   
99+
2nd Energy Level
1,823.60 kJ/mol   
17
2,234.30 kJ/mol   
8
3rd Energy Level
2,904.20 kJ/mol   
31
3,400.00 kJ/mol   
16
4th Energy Level
3,859.40 kJ/mol   
99+
Not Available   
5th Energy Level
4,920.80 kJ/mol   
35
Not Available   
Electrochemical Equivalent
Not Available   
4.96 g/amp-hr   
3
Electron Work Function
Not Available   
2.14 eV   
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
109   
9
55   
99+
Electron Configuration
[Rn] 5f14 6d7 7s2   
[Xe] 6s1   
Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Meitnerium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
109   
9
55   
99+
Number of Neutrons
157   
7
78   
99+
Number of Electrons
109   
9
55   
99+
Radius of an Atom
  
  
Atomic Radius
122.00 pm   
99+
265.00 pm   
1
Covalent Radius
129.00 pm   
99+
244.00 pm   
2
Van der Waals Radius
Not Available   
343.00 pm   
2
Atomic Weight
278.00 amu   
7
132.91 amu   
99+
Atomic Volume
Not Available   
71.07 cm3/mol   
1
Adjacent Atomic Numbers
  
  
Previous Element
Hassium
  
Tin
  
Next Element
Darmstadtium
  
Barium
  
Valence Electron Potential
Not Available   
8.62 (-eV)   
99+
Lattice Constant
Not Available   
614.10 pm   
5
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
37.40 g/cm3   
2
1.93 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
1.84 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Elasticity properties
  
  
Bulk Modulus
Not Available   
1.60 GPa   
99+
Young's Modulus
Not Available   
1.70 GPa   
99+
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
NA   
Ductile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
1.87   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Semiconductor   
Resistivity
Not Available   
205.00 nΩ·m   
17
Electrical Conductivity
Not Available   
0.05 106/cm Ω   
35
Electron Affinity
Not Available   
45.50 kJ/mol   
25
Thermal Properties
Specific Heat
Not Available   
0.24 J/(kg K)   
23
Molar Heat Capacity
Not Available   
32.21 J/mol·K   
4
Thermal Conductivity
Not Available   
35.90 W/m·K   
36
Critical Temperature
Not Available   
1,938.00 K   
5
Thermal Expansion
Not Available   
97.00 µm/(m·K)   
1
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
65.90 kJ/mol   
99+
Enthalpy of Fusion
Not Available   
2.10 kJ/mol   
99+
Enthalpy of Atomization
Not Available   
78.20 kJ/mol   
99+
Standard Molar Entropy
Not Available   
85.20 J/mol.K   
3
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