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Eu Element
Europium


Periodic Table
0
Symbol
Eu 0
Group Number
Not Available 0
Period Number
6 2
Block
f block 0
Element Family
Lanthanide 0
CAS Number
7440531 34
Space Group Name
Im_ 3m 0
Space Group Number
229.00 1
Facts
0
Interesting Facts
Not Available 0
Sources
Found in Minerals, Mining, Ores of Minerals 0
History
0
Who Discovered
Eugène-Anatole Demarçay 0
Discovery
In 1896 0
Abundance
0
Abundance In Universe
5 * 10-8 % 27
Abundance In Sun
~0.00000005 % 27
Abundance In Meteorites
0.00 % 43
Abundance In Earth's Crust
0.00 % 36
Abundance In Oceans
0.00 % 42
Abundance In Humans
Not Available 0
Uses
0
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.
0
Industrial Uses
Chemical Industry 0
Medical Uses
NA 0
Other Uses
Alloys 0
Biological Properties
0
Toxicity
Non Toxic 0
Present in Human Body
Yes 0
In Blood
Not Available 0
In Bone
Not Available 0
Physical
0
Melting Point
822.00 °C 55
Boiling Point
1,597.00 °C 56
Appearance
0
Physical State
Solid 0
Color
Silvery White 0
Luster
Lustrous 0
Hardness
0
Mohs Hardness
Not Available 0
Brinell Hardness
Not Available 0
Vickers Hardness
167.00 MPa 34
Speed of Sound
Not Available 0
Optical Properties
0
Refractive Index
Not Available 0
Reflectivity
Not Available 0
Allotropes
No 0
α Allotropes
Not Available 0
β Allotropes
Not Available 0
γ Allotropes
Not Available 0
Chemical
0
Chemical Formula
Eu 0
Isotopes
0
Known Isotopes
31 8
Electronegativity
0
Pauling Electronegativity
1.20 39
Sanderson Electronegativity
1.01 22
Allred Rochow Electronegativity
Not Available 0
Mulliken-Jaffe Electronegativity
Not Available 0
Allen Electronegativity
Not Available 0
Electropositivity
0
Pauling Electropositivity
Not Available 0
Ionization Energies
0
1st Energy Level
547.10 kJ/mol 71
2nd Energy Level
1,085.00 kJ/mol 74
3rd Energy Level
2,404.00 kJ/mol 51
4th Energy Level
4,120.00 kJ/mol 33
5th Energy Level
Not Available 0
6th Energy Level
Not Available 0
7th Energy level
Not Available 0
8th Energy Level
Not Available 0
9th Energy Level
Not Available 0
10th Energy Level
Not Available 0
11th Energy Level
Not Available 0
12th Energy Level
Not Available 0
13th Energy Level
Not Available 0
14th Energy Level
Not Available 0
15th Energy Level
Not Available 0
16th Energy Level
Not Available 0
17th Energy Level
Not Available 0
18th Energy Level
Not Available 0
19th Energy Level
Not Available 0
20th Energy Level
Not Available 0
21st Energy Level
Not Available 0
22nd Energy Level
Not Available 0
23rd Energy Level
Not Available 0
24th Energy Level
Not Available 0
25th Energy Level
Not Available 0
26th Energy Level
Not Available 0
27th Energy Level
Not Available 0
28th Energy Level
Not Available 0
29th Energy Level
Not Available 0
30th Energy Level
Not Available 0
Electrochemical Equivalent
1.89 g/amp-hr 33
Electron Work Function
2.50 eV 43
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility 0
Atomic
0
Atomic Number
63 53
Electron Configuration
[Xe] 4f7 6s2 0
Crystal Structure
Body Centered Cubic (BCC) 0
Crystal Lattice
BCC-Crystal-Structure-.jpg#100 0
Atom
0
Number of Protons
63 52
Number of Neutrons
89 38
Number of Electrons
63 52
Radius of an Atom
0
Atomic Radius
180.00 pm 14
Covalent Radius
198.00 pm 13
Van der Waals Radius
233.00 pm 18
Atomic Weight
151.96 amu 47
Atomic Volume
28.90 cm3/mol 8
Adjacent Atomic Numbers
0
Previous Element
50 0
Next Element
14 0
Valence Electron Potential
45.60 (-eV) 35
Lattice Constant
458.10 pm 17
Lattice Angles
π/2, π/2, π/2 0
Lattice C/A Ratio
Not Available 0
Mechanical
0
Density
0
Density At Room Temperature
5.26 g/cm3 69
Density When Liquid (at m.p.)
5.13 g/cm3 47
Tensile Strength
120.00 MPa 15
Viscosity
Not Available 0
Vapor Pressure
0
Vapor Pressure at 1000 K
19.40 (Pa) 4
Vapor Pressure at 2000 K
Not Available 0
Elasticity properties
0
Shear Modulus
7.90 GPa 44
Bulk Modulus
8.30 GPa 46
Young's Modulus
18.20 GPa 47
Poisson Ratio
0.15 34
Other Mechanical Properties
Ductile 0
Magnetic
0
Magnetic Characteristics
0
Specific Gravity
5.24 55
Magnetic Ordering
Paramagnetic 0
Permeability
Not Available 0
Susceptibility
Not Available 0
Electrical Properties
0
Electrical Property
Conductor 0
Resistivity
0.90 nΩ·m 62
Electrical Conductivity
0.01 106/cm Ω 55
Electron Affinity
50.00 kJ/mol 21
Thermal
0
Specific Heat
0.18 J/(kg K) 33
Molar Heat Capacity
27.66 J/mol·K 16
Thermal Conductivity
13.90 W/m·K 56
Critical Temperature
Not Available 0
Thermal Expansion
35.00 µm/(m·K) 8
Enthalpy
0
Enthalpy of Vaporization
143.50 kJ/mol 48
Enthalpy of Fusion
9.21 kJ/mol 37
Enthalpy of Atomization
180.00 kJ/mol 47
Standard Molar Entropy
77.80 J/mol.K 4
Summary >>
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