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Cesium vs Hassium

Cesium
Hassium
Hassium vs Cesium


Periodic Table
Symbol
Cs   
Hs   
Group Number
1   
17
8   
10
Period Number
6   
7   
Block
s block   
d block   
Element Family
Alkali   
Transition Metal   
CAS Number
7440462   
40
54037579   
11
Space Group Name
Im_ 3m   
Not Available   
Space Group Number
229.00   
1
Not Available   
Facts
Interesting Facts
Not Available   
  • Hassium metals rate of decay is very high.
  • Hassium metals 1st sample was synthesized through a nuclear reaction.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
Synthetically Produced   
History
  
  
Who Discovered
Robert Bunsen and Gustav Kirchhoff   
Gesellschaft für Schwerionenforschung   
Discovery
In 1860   
In 1984   
Abundance
  
  
Abundance In Universe
8 * 10-8 %   
24
Not Available   
Abundance In Sun
~0.0000008 %   
20
~-9999 %   
Abundance In Meteorites
0.00 %   
38
Not Available   
Abundance In Earth's Crust
0.00 %   
35
Not Available   
Abundance In Oceans
0.00 %   
17
Not Available   
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.
  
  • Currently known uses of Hassium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
NA   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Research Purposes   
Biological Properties
  
  
Toxicity
Mildly Toxic   
Unknown   
Present in Human Body
Yes   
No   
In Blood
0.00 Blood/mg dm-3   
28
0.00 Blood/mg dm-3   
37
In Bone
0.05 p.p.m.   
26
0.00 p.p.m.   
36
Physical Properties
Melting Point
28.50 °C   
99+
Not Available   
Boiling Point
678.40 °C   
99+
Not Available   
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gold   
Silver   
Luster
NA   
NA   
Hardness
  
  
Mohs Hardness
0.20   
25
Not Available   
Brinell Hardness
0.14 MPa   
99+
Not Available   
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
Cs   
Hs   
Isotopes
  
  
Known Isotopes
36   
3
7   
31
Electronegativity
  
  
Pauling Electronegativity
0.79   
99+
Not Available   
Sanderson Electronegativity
0.22   
33
Not Available   
Allred Rochow Electronegativity
0.86   
99+
Not Available   
Mulliken-Jaffe Electronegativity
0.62   
26
Not Available   
Allen Electronegativity
0.66   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.21   
2
Not Available   
Ionization Energies
  
  
1st Energy Level
375.70 kJ/mol   
99+
733.30 kJ/mol   
26
2nd Energy Level
2,234.30 kJ/mol   
8
1,756.00 kJ/mol   
24
3rd Energy Level
3,400.00 kJ/mol   
16
2,827.00 kJ/mol   
36
4th Energy Level
Not Available   
3,637.50 kJ/mol   
99+
5th Energy Level
Not Available   
4,940.00 kJ/mol   
34
6th Energy Level
Not Available   
6,175.10 kJ/mol   
23
7th Energy level
Not Available   
7,535.50 kJ/mol   
21
8th Energy Level
Not Available   
8,857.40 kJ/mol   
20
Electrochemical Equivalent
4.96 g/amp-hr   
3
Not Available   
Electron Work Function
2.14 eV   
99+
Not Available   
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
55   
99+
108   
10
Electron Configuration
[Xe] 6s1   
[Rn] 5f14 6d6 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
55   
99+
108   
10
Number of Neutrons
78   
99+
158   
6
Number of Electrons
55   
99+
108   
10
Radius of an Atom
  
  
Atomic Radius
265.00 pm   
1
126.00 pm   
99+
Covalent Radius
244.00 pm   
2
134.00 pm   
99+
Van der Waals Radius
343.00 pm   
2
Not Available   
Atomic Weight
132.91 amu   
99+
269.00 amu   
9
Atomic Volume
71.07 cm3/mol   
1
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Tin
  
Bohrium
  
Next Element
Barium
  
Meitnerium
  
Valence Electron Potential
8.62 (-eV)   
99+
Not Available   
Lattice Constant
614.10 pm   
5
Not Available   
Lattice Angles
π/2, π/2, π/2   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
1.93 g/cm3   
99+
40.70 g/cm3   
1
Density When Liquid (at m.p.)
1.84 g/cm3   
99+
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Elasticity properties
  
  
Bulk Modulus
1.60 GPa   
99+
Not Available   
Young's Modulus
1.70 GPa   
99+
Not Available   
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
Ductile   
Unknown   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
1.87   
99+
Not Available   
Magnetic Ordering
Paramagnetic   
Unknown   
Electrical Properties
  
  
Electrical Property
Semiconductor   
Unknown   
Resistivity
205.00 nΩ·m   
17
Not Available   
Electrical Conductivity
0.05 106/cm Ω   
35
Not Available   
Electron Affinity
45.50 kJ/mol   
25
Not Available   
Thermal Properties
Specific Heat
0.24 J/(kg K)   
23
Not Available   
Molar Heat Capacity
32.21 J/mol·K   
4
Not Available   
Thermal Conductivity
35.90 W/m·K   
36
Not Available   
Critical Temperature
1,938.00 K   
5
Not Available   
Thermal Expansion
97.00 µm/(m·K)   
1
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
65.90 kJ/mol   
99+
Not Available   
Enthalpy of Fusion
2.10 kJ/mol   
99+
Not Available   
Enthalpy of Atomization
78.20 kJ/mol   
99+
Not Available   
Standard Molar Entropy
85.20 J/mol.K   
3
Not Available   
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