Symbol
U
  
Hs
  
Period Number
7
  
7
  
Block
f block
  
d block
  
Element Family
Actinide
  
Transition Metal
  
Space Group Name
Cmcm
  
Not Available
  
Space Group Number
Not Available
  
Interesting Facts
- Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
- Hassium metals rate of decay is very high.
- Hassium metals 1st sample was synthesized through a nuclear reaction.
  
Sources
Earth's crust, Mining, Ores of Minerals
  
Synthetically Produced
  
History
  
  
Who Discovered
Not Available
  
Gesellschaft für Schwerionenforschung
  
Discovery
In 1789
  
In 1984
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~0.0000001 %
  
26
~-9999 %
  
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available
  
Uses & Benefits
- 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.
  
- Currently known uses of Hassium metal are limited to research purpose only.
  
Industrial Uses
Ammunition Industry, Chemical Industry
  
NA
  
Medical Uses
NA
  
NA
  
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues
  
Research Purposes
  
Biological Properties
  
  
Toxicity
Toxic
  
Unknown
  
Present in Human Body
No
  
No
  
In Blood
Not Available
  
0.00 Blood/mg dm-3
  
37
In Bone
Not Available
  
0.00 p.p.m.
  
36
Melting Point
1,132.00 °C
  
39
Not Available
  
Boiling Point
3,818.00 °C
  
16
Not Available
  
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery Gray
  
Silver
  
Luster
Metallic
  
NA
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
2,350.00 MPa
  
2
Not Available
  
Vickers Hardness
1,960.00 MPa
  
2
Not Available
  
Speed of Sound
3,155.00 m/s
  
25
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 Formula
U
  
Hs
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol
  
99+
733.30 kJ/mol
  
26
2nd Energy Level
1,420.00 kJ/mol
  
99+
1,756.00 kJ/mol
  
24
3rd Energy Level
1,900.00 kJ/mol
  
99+
2,827.00 kJ/mol
  
36
4th Energy Level
3,145.00 kJ/mol
  
99+
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
1.48 g/amp-hr
  
99+
Not Available
  
Electron Work Function
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
  
Ionization, Radioactive Isotopes, Radioactivity
  
Electron Configuration
[Rn] 5f3 6d1 7s2
  
[Rn] 5f14 6d6 7s2
  
Crystal Structure
Orthorhombic (ORTH)
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100
  
BCC-Crystal-Structure-.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Van der Waals Radius
Not Available
  
Atomic Volume
12.59 cm3/mol
  
40
Not Available
  
Adjacent Atomic Numbers
  
  
Valence Electron Potential
170.00 (-eV)
  
4
Not Available
  
Lattice Constant
Not Available
  
Lattice Angles
π/2, π/2, π/2
  
NA
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
19.10 g/cm3
  
17
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Ductile, Malleable
  
Unknown
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Paramagnetic
  
Unknown
  
Electrical Properties
  
  
Electrical Property
Poor Conductor
  
Unknown
  
Resistivity
Not Available
  
Electrical Conductivity
0.04 10
6/cm Ω
  
37
Not Available
  
Specific Heat
0.12 J/(kg K)
  
40
Not Available
  
Molar Heat Capacity
27.67 J/mol·K
  
15
Not Available
  
Thermal Conductivity
27.50 W/m·K
  
40
Not Available
  
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
13.90 µm/(m·K)
  
27
Not Available
  
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol
  
13
Not Available
  
Enthalpy of Fusion
15.48 kJ/mol
  
19
Not Available
  
Enthalpy of Atomization
489.50 kJ/mol
  
14
Not Available
  
Standard Molar Entropy
50.20 J/mol.K
  
31
Not Available