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Europium vs Tungsten

Europium
Tungsten
Tungsten vs Europium


Periodic Table
Symbol
Eu  
W  
Group Number
3  
15
6  
12
Period Number
6  
6  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7440531  
34
7440337  
99+
Space Group Name
Im_ 3m  
Im_ 3m  
Space Group Number
229.00  
2
229.00  
2
Facts
Interesting Facts
Europium is used in Euro banknotes for security features.  
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Eugène-Anatole Demarçay  
-  
Discovery
In 1896  
In 1781  
Abundance
  
  
Abundance In Universe
0.00 %  
28
0.00 %  
28
Abundance In Sun
0.00 %  
27
0.00 %  
23
Abundance In Meteorites
0.00 %  
99+
0.00 %  
39
Abundance In Earth's Crust
0.00 %  
36
0.00 %  
39
Abundance In Oceans
0.00 %  
99+
0.00 %  
18
Abundance In Humans
0.00 %  
24
0.00 %  
24
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.
  
  • Tungsten and its alloys are used in high-temperature applications like welding electrodes, high-temperature furnace, etc.
  • Tungsten carbide is very hard and used in metal working, mining and petroleum industry.
  
Industrial Uses
Chemical Industry  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Non Toxic  
Non Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
31
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
40
Physical
Melting Point
822.00 °C  
99+
3,410.00 °C  
1
Boiling Point
1,597.00 °C  
99+
5,660.00 °C  
1
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Grayish White  
Luster
Lustrous  
Lustrous  
Hardness
  
  
Mohs Hardness
2.00  
17
7.50  
2
Brinell Hardness
167.00 MPa  
99+
2,000.00 MPa  
4
Vickers Hardness
167.00 MPa  
99+
3,430.00 MPa  
3
Speed of Sound
6,320.00 m/s  
4
4,620.00 m/s  
20
Optical Properties
  
  
Refractive Index
1.83  
19
2.10  
11
Reflectivity
65.00 %  
18
62.00 %  
21
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Eu  
W  
Isotopes
  
  
Known Isotopes
31  
8
33  
6
Electronegativity
  
  
Pauling Electronegativity
1.20  
40
2.36  
3
Sanderson Electronegativity
1.01  
99+
0.98  
99+
Allred Rochow Electronegativity
1.20  
28
1.40  
20
Mulliken-Jaffe Electronegativity
1.20  
39
2.36  
3
Allen Electronegativity
1.20  
99+
1.47  
33
Electropositivity
  
  
Pauling Electropositivity
2.50  
27
1.64  
99+
Ionization Energies
  
  
1st Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
16
2nd Energy Level
1,085.00 kJ/mol  
99+
1,700.00 kJ/mol  
30
3rd Energy Level
2,404.00 kJ/mol  
99+
2,045.40 kJ/mol  
99+
4th Energy Level
4,120.00 kJ/mol  
99+
7,700.00 kJ/mol  
8
5th Energy Level
5,471.00 kJ/mol  
99+
7,700.00 kJ/mol  
17
6th Energy Level
5,471.00 kJ/mol  
99+
7,700.00 kJ/mol  
35
7th Energy level
5,470.00 kJ/mol  
99+
7,700.00 kJ/mol  
29
8th Energy Level
5,470.00 kJ/mol  
99+
7,700.00 kJ/mol  
29
9th Energy Level
5,990.00 kJ/mol  
99+
7,700.00 kJ/mol  
25
10th Energy Level
5,470.00 kJ/mol  
99+
7,700.00 kJ/mol  
29
11th Energy Level
5,470.00 kJ/mol  
99+
7,700.00 kJ/mol  
28
12th Energy Level
5,470.00 kJ/mol  
99+
7,700.00 kJ/mol  
99+
13th Energy Level
5,800.00 kJ/mol  
99+
7,700.00 kJ/mol  
21
14th Energy Level
5,470.00 kJ/mol  
99+
770.00 kJ/mol  
99+
15th Energy Level
54,700.00 kJ/mol  
99+
77,000.00 kJ/mol  
18
16th Energy Level
54,700.00 kJ/mol  
99+
77,000.00 kJ/mol  
13
17th Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
34
18th Energy Level
5,470.00 kJ/mol  
99+
7,700.00 kJ/mol  
24
19th Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
31
20th Energy Level
547.00 kJ/mol  
99+
770.00 kJ/mol  
25
21st Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
99+
22nd Energy Level
547.00 kJ/mol  
99+
770.00 kJ/mol  
19
23rd Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
99+
24th Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
15
25th Energy Level
547.00 kJ/mol  
99+
770.00 kJ/mol  
14
26th Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
14
27th Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
13
28th Energy Level
580.70 kJ/mol  
99+
770.00 kJ/mol  
19
29th Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
19
30th Energy Level
547.10 kJ/mol  
99+
770.00 kJ/mol  
14
Electrochemical Equivalent
1.89 g/amp-hr  
37
1.14 g/amp-hr  
99+
Electron Work Function
2.50 eV  
99+
4.55 eV  
18
Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility  
Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
63  
99+
74  
99+
Electron Configuration
[Xe] 4f7 6s2  
[Xe] 4f14 5d4 6s2  
Crystal Structure
Body Centered Cubic (BCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
63  
99+
74  
99+
Number of Neutrons
89  
39
110  
28
Number of Electrons
63  
99+
74  
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
16
139.00 pm  
99+
Covalent Radius
198.00 pm  
13
162.00 pm  
31
Van der Waals Radius
233.00 pm  
22
200.00 pm  
35
Atomic Weight
151.96 amu  
99+
183.84 amu  
37
Atomic Volume
28.90 cm3/mol  
11
9.53 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Samarium
  
Tantalum
  
Next Element
Gadolinium
  
Rhenium
  
Valence Electron Potential
45.60 (-eV)  
36
140.00 (-eV)  
5
Lattice Constant
458.10 pm  
19
316.52 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
35
1.29  
99+
Mechanical
Density
  
  
Density At Room Temperature
5.26 g/cm3  
99+
19.25 g/cm3  
16
Density When Liquid (at m.p.)
5.13 g/cm3  
99+
17.60 g/cm3  
15
Tensile Strength
120.00 MPa  
27
370.00 MPa  
11
Viscosity
0.00  
25
0.00  
1
Vapor Pressure
  
  
Vapor Pressure at 1000 K
19.40 (Pa)  
4
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
7.90 GPa  
99+
161.00 GPa  
5
Bulk Modulus
8.30 GPa  
99+
310.00 GPa  
4
Young's Modulus
18.20 GPa  
99+
411.00 GPa  
4
Poisson Ratio
0.15  
35
0.28  
17
Other Mechanical Properties
Ductile  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
5.24  
99+
19.22  
18
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
15
0.00  
23
Electrical Properties
  
  
Electrical Property
Conductor  
Superconductor  
Resistivity
0.90 nΩ·m  
99+
52.80 nΩ·m  
99+
Electrical Conductivity
0.01 106/cm Ω  
99+
0.19 106/cm Ω  
10
Electron Affinity
50.00 kJ/mol  
26
78.60 kJ/mol  
15
Thermal
Specific Heat
0.18 J/(kg K)  
34
0.13 J/(kg K)  
40
Molar Heat Capacity
27.66 J/mol·K  
19
24.27 J/mol·K  
99+
Thermal Conductivity
13.90 W/m·K  
99+
173.00 W/m·K  
7
Critical Temperature
1,099.00 K  
99+
3,695.00 K  
1
Thermal Expansion
35.00 µm/(m·K)  
8
4.50 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
143.50 kJ/mol  
99+
799.10 kJ/mol  
1
Enthalpy of Fusion
9.21 kJ/mol  
99+
35.23 kJ/mol  
1
Enthalpy of Atomization
180.00 kJ/mol  
99+
837.00 kJ/mol  
1
Standard Molar Entropy
77.80 J/mol.K  
4
32.60 J/mol.K  
99+
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