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Europium vs Bohrium

Europium
Bohrium
Bohrium vs Europium


Periodic Table
Symbol
Eu  
Bh  
Group Number
Not Available  
7  
11
Period Number
6  
7  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7440531  
34
54037148  
12
Space Group Name
Im_ 3m  
Not Available  
Space Group Number
229.00  
1
Not Available  
Facts
Interesting Facts
Not Available  
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining, Synthetically Produced  
History
  
  
Who Discovered
Eugène-Anatole Demarçay  
Gesellschaft für Schwerionenforschung  
Discovery
In 1896  
In 1981  
Abundance
  
  
Abundance In Universe
5 * 10-8 %  
27
Not Available  
Abundance In Sun
~0.00000005 %  
27
~-9999 %  
Abundance In Meteorites
0.00 %  
99+
Not Available  
Abundance In Earth's Crust
0.00 %  
36
Not Available  
Abundance In Oceans
0.00 %  
99+
Not Available  
Uses
Uses & Benefits
  • Europium metals main uses is in the printing of euro banknotes. These notes glow red under UV light.
  • It is used in low energy light bulbs.
  
  • Currently known uses of Bohrium metal are limited to research purpose only.
  
Industrial Uses
Chemical Industry  
NA  
Medical Uses
NA  
NA  
Other Uses
Alloys  
Research Purposes  
Biological Properties
  
  
Toxicity
Non Toxic  
Unknown  
Present in Human Body
Yes  
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
822.00 °C  
99+
Not Available  
Boiling Point
1,597.00 °C  
99+
Not Available  
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Unknown  
Luster
Lustrous  
Unknown Luster  
Hardness
  
  
Vickers Hardness
167.00 MPa  
34
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
Eu  
Bh  
Isotopes
  
  
Known Isotopes
31  
8
5  
32
Electronegativity
  
  
Pauling Electronegativity
1.20  
39
Not Available  
Sanderson Electronegativity
1.01  
22
Not Available  
Electropositivity
  
  
Ionization Energies
  
  
1st Energy Level
547.10 kJ/mol  
99+
742.90 kJ/mol  
23
2nd Energy Level
1,085.00 kJ/mol  
99+
1,688.50 kJ/mol  
30
3rd Energy Level
2,404.00 kJ/mol  
99+
2,566.50 kJ/mol  
99+
4th Energy Level
4,120.00 kJ/mol  
33
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
1.89 g/amp-hr  
33
Not Available  
Electron Work Function
2.50 eV  
99+
Not Available  
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes  
Atomic Properties
Atomic Number
63  
99+
107  
11
Electron Configuration
[Xe] 4f7 6s2  
[Rn] 5f14 6d5 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
63  
99+
107  
11
Number of Neutrons
89  
38
155  
8
Number of Electrons
63  
99+
107  
11
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
14
128.00 pm  
99+
Covalent Radius
198.00 pm  
13
141.00 pm  
99+
Van der Waals Radius
233.00 pm  
18
Not Available  
Atomic Weight
151.96 amu  
99+
270.00 amu  
8
Atomic Volume
28.90 cm3/mol  
8
Not Available  
Adjacent Atomic Numbers
  
  
Previous Element
Samarium
  
Seaborgium
  
Next Element
Gadolinium
  
Hassium
  
Valence Electron Potential
45.60 (-eV)  
35
Not Available  
Lattice Constant
458.10 pm  
17
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
5.26 g/cm3  
99+
37.10 g/cm3  
3
Density When Liquid (at m.p.)
5.13 g/cm3  
99+
Not Available  
Tensile Strength
120.00 MPa  
15
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
19.40 (Pa)  
4
Not Available  
Elasticity properties
  
  
Shear Modulus
7.90 GPa  
99+
Not Available  
Bulk Modulus
8.30 GPa  
99+
Not Available  
Young's Modulus
18.20 GPa  
99+
Not Available  
Poisson Ratio
0.15  
34
Not Available  
Other Mechanical Properties
Ductile  
Unknown  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
5.24  
99+
Not Available  
Magnetic Ordering
Paramagnetic  
Unknown  
Electrical Properties
  
  
Electrical Property
Conductor  
Unknown  
Resistivity
0.90 nΩ·m  
99+
Not Available  
Electrical Conductivity
0.01 106/cm Ω  
99+
Not Available  
Electron Affinity
50.00 kJ/mol  
21
Not Available  
Thermal Properties
Specific Heat
0.18 J/(kg K)  
33
Not Available  
Molar Heat Capacity
27.66 J/mol·K  
16
Not Available  
Thermal Conductivity
13.90 W/m·K  
99+
Not Available  
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
35.00 µm/(m·K)  
8
Not Available  
Enthalpy
  
  
Enthalpy of Vaporization
143.50 kJ/mol  
99+
Not Available  
Enthalpy of Fusion
9.21 kJ/mol  
37
Not Available  
Enthalpy of Atomization
180.00 kJ/mol  
99+
Not Available  
Standard Molar Entropy
77.80 J/mol.K  
4
Not Available  
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