Symbol
Bh
  
Pu
  
Period Number
7
  
7
  
Block
d block
  
f block
  
Element Family
Transition Metal
  
Actinide
  
Space Group Name
Not Available
  
P121/m1
  
Space Group Number
Not Available
  
Interesting Facts
- Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
- Plutonium metal if obtain from ores of uranium metal.
- Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  
Sources
Found in Minerals, Mining, Synthetically Produced
  
Mining, Ores of metals
  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung
  
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan
  
Discovery
In 1981
  
In Between 1940 1941
  
Abundance
  
  
Uses & Benefits
- Currently known uses of Bohrium metal are limited to research purpose only.
  
- Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
-
It is also used in nuclear power plant as source of energy for space missions.
  
Industrial Uses
NA
  
Aerospace Industry, Ammunition Industry
  
Medical Uses
NA
  
NA
  
Other Uses
Research Purposes
  
Alloys
  
Biological Properties
  
  
Toxicity
Unknown
  
Toxic
  
Present in Human Body
No
  
No
  
In Blood
0.00 Blood/mg dm-3
  
37
0.00 Blood/mg dm-3
  
37
In Bone
0.00 p.p.m.
  
36
0.00 p.p.m.
  
36
Melting Point
Not Available
  
Boiling Point
Not Available
  
3,235.00 °C
  
24
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Unknown
  
Silvery White
  
Luster
Unknown Luster
  
NA
  
Hardness
  
  
Speed of Sound
Not Available
  
2,260.00 m/s
  
99+
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Bh
  
Pu
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
Ionization Energies
  
  
1st Energy Level
742.90 kJ/mol
  
23
584.70 kJ/mol
  
99+
2nd Energy Level
1,688.50 kJ/mol
  
30
1,128.00 kJ/mol
  
99+
3rd Energy Level
2,566.50 kJ/mol
  
99+
2,084.00 kJ/mol
  
99+
4th Energy Level
3,598.90 kJ/mol
  
99+
3,338.00 kJ/mol
  
99+
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
  
2.28 g/amp-hr
  
22
Electron Work Function
Not Available
  
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes
  
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
  
Electron Configuration
[Rn] 5f14 6d5 7s2
  
[Rn] 5f6 7s2
  
Crystal Structure
Hexagonal Close Packed (HCP)
  
Monoclinic (MON)
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
MON-Crystal-Structure-of-Plutonium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Van der Waals Radius
Not Available
  
Atomic Volume
Not Available
  
12.32 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
64.90 (-eV)
  
21
Lattice Constant
Not Available
  
Lattice Angles
NA
  
NA
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
19.82 g/cm3
  
13
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Unknown
  
Ductile, Malleable
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Unknown
  
Paramagnetic
  
Electrical Properties
  
  
Electrical Property
Unknown
  
Poor Conductor
  
Resistivity
Not Available
  
Electrical Conductivity
Not Available
  
0.01 10
6/cm Ω
  
99+
Specific Heat
Not Available
  
0.13 J/(kg K)
  
39
Molar Heat Capacity
Not Available
  
35.50 J/mol·K
  
3
Thermal Conductivity
Not Available
  
6.74 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
46.70 µm/(m·K)
  
6
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
344.00 kJ/mol
  
25
Enthalpy of Fusion
Not Available
  
2.82 kJ/mol
  
99+
Enthalpy of Atomization
Not Available
  
360.00 kJ/mol
  
26
Standard Molar Entropy
Not Available
  
Not Available