Home
 Compare Metals

Bohrium vs Cesium

Bohrium
Cesium
Cesium vs Bohrium


Periodic Table
Symbol
Bh  
Cs  
Group Number
7  
11
1  
17
Period Number
7  
6  
Block
d block  
s block  
Element Family
Transition Metal  
Alkali  
CAS Number
54037148  
12
7440462  
40
Space Group Name
Not Available  
Im_ 3m  
Space Group Number
Not Available  
229.00  
1
Facts
Interesting Facts
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Not Available  
Sources
Found in Minerals, Mining, 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 1981  
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 Bohrium 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
Research Purposes  
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
Bh  
Cs  
Isotopes
  
  
Known Isotopes
5  
32
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
742.90 kJ/mol  
23
375.70 kJ/mol  
99+
2nd Energy Level
1,688.50 kJ/mol  
30
2,234.30 kJ/mol  
8
3rd Energy Level
2,566.50 kJ/mol  
99+
3,400.00 kJ/mol  
16
4th Energy Level
3,598.90 kJ/mol  
99+
Not Available  
5th Energy Level
4,727.80 kJ/mol  
37
Not Available  
6th Energy Level
5,991.70 kJ/mol  
24
Not Available  
7th Energy level
7,226.80 kJ/mol  
22
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  
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
107  
11
55  
99+
Electron Configuration
[Rn] 5f14 6d5 7s2  
[Xe] 6s1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
107  
11
55  
99+
Number of Neutrons
155  
8
78  
99+
Number of Electrons
107  
11
55  
99+
Radius of an Atom
  
  
Atomic Radius
128.00 pm  
99+
265.00 pm  
1
Covalent Radius
141.00 pm  
99+
244.00 pm  
2
Van der Waals Radius
Not Available  
343.00 pm  
2
Atomic Weight
270.00 amu  
8
132.91 amu  
99+
Atomic Volume
Not Available  
71.07 cm3/mol  
1
Adjacent Atomic Numbers
  
  
Previous Element
Seaborgium
  
Tin
  
Next Element
Hassium
  
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
37.10 g/cm3  
3
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
Unknown  
Ductile  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available  
1.87  
99+
Magnetic Ordering
Unknown  
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
Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!