Uranium vs Bohrium
Periodic Table
Symbol
U
Bh
Group Number
0
18
7
11
Period Number
7
7
Block
f block
d block
Element Family
Actinide
Transition Metal
CAS Number
7440611
28
54037148
12
Space Group Name
Cmcm
Not Available
Space Group Number
63.00
10
Not Available
Facts
Interesting Facts
- Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
- Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
Sources
Earth's crust, Mining, Ores of Minerals
Found in Minerals, Mining, Synthetically Produced
History
Who Discovered
Not Available
Gesellschaft für Schwerionenforschung
Discovery
In 1789
In 1981
Abundance
Abundance In Universe
2 * 10-8 %
29
Not Available
Abundance In Sun
~0.0000001 %
26
~-9999 %
Abundance In Meteorites
0.00 %
99+
Not Available
Abundance In Earth's Crust
0.00 %
36
Not Available
Abundance In Oceans
0.00 %
11
Not Available
Uses
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 Bohrium 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
Physical Properties
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
Unknown
Luster
Metallic
Unknown Luster
Hardness
Mohs Hardness
6.00
6
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 Properties
Chemical Formula
U
Bh
Isotopes
Known Isotopes
25
14
5
32
Electronegativity
Pauling Electronegativity
1.38
28
Not Available
Allred Rochow Electronegativity
1.22
26
Not Available
Electropositivity
Pauling Electropositivity
2.62
26
Not Available
Ionization Energies
1st Energy Level
597.60 kJ/mol
99+
742.90 kJ/mol
23
2nd Energy Level
1,420.00 kJ/mol
99+
1,688.50 kJ/mol
30
3rd Energy Level
1,900.00 kJ/mol
99+
2,566.50 kJ/mol
99+
4th Energy Level
3,145.00 kJ/mol
99+
3,598.90 kJ/mol
99+
5th Energy Level
Not Available
4,727.80 kJ/mol
37
6th Energy Level
Not Available
5,991.70 kJ/mol
24
7th Energy level
Not Available
7,226.80 kJ/mol
22
Electrochemical Equivalent
1.48 g/amp-hr
99+
Not Available
Electron Work Function
3.63 eV
30
Not Available
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes
Atomic Properties
Atomic Number
92
26
107
11
Electron Configuration
[Rn] 5f3 6d1 7s2
[Rn] 5f14 6d5 7s2
Crystal Structure
Orthorhombic (ORTH)
Hexagonal Close Packed (HCP)
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
92
26
107
11
Number of Neutrons
146
13
155
8
Number of Electrons
92
26
107
11
Radius of an Atom
Atomic Radius
156.00 pm
29
128.00 pm
99+
Covalent Radius
196.00 pm
14
141.00 pm
99+
Van der Waals Radius
186.00 pm
33
Not Available
Atomic Weight
238.03 amu
21
270.00 amu
8
Atomic Volume
12.59 cm3/mol
40
Not Available
Adjacent Atomic Numbers
Valence Electron Potential
170.00 (-eV)
4
Not Available
Lattice Constant
295.08 pm
99+
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
19.10 g/cm3
17
37.10 g/cm3
3
Density When Liquid (at m.p.)
17.30 g/cm3
7
Not Available
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 2000 K
0.01 (Pa)
20
Not Available
Elasticity properties
Shear Modulus
111.00 GPa
10
Not Available
Bulk Modulus
100.00 GPa
16
Not Available
Young's Modulus
208.00 GPa
10
Not Available
Poisson Ratio
0.23
30
Not Available
Other Mechanical Properties
Ductile, Malleable
Unknown
Magnetic Properties
Magnetic Characteristics
Specific Gravity
18.80
10
Not Available
Magnetic Ordering
Paramagnetic
Unknown
Electrical Properties
Electrical Property
Poor Conductor
Unknown
Resistivity
0.28 nΩ·m
99+
Not Available
Electrical Conductivity
0.04 106/cm Ω
37
Not Available
Thermal Properties
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
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