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Rhenium vs Yttrium

Rhenium
Yttrium
Yttrium vs Rhenium


Periodic Table
Symbol
Re  
Y  
Group Number
7  
11
3  
15
Period Number
6  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440155  
99+
7440655  
25
Space Group Name
P63/mmc  
P63/mmc  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
  • Chemical properties of Rhenium are similar to Manganese.
  • Rhenium metal is created while refining Molybdenum.
  
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Masataka Ogawa  
Johan Gadolin  
Discovery
In 1908  
In 1794  
Abundance
  
  
Abundance In Universe
0.00 %  
30
0.00 %  
18
Abundance In Sun
0.00 %  
29
0.00 %  
26
Abundance In Meteorites
0.00 %  
99+
0.00 %  
21
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
22
Abundance In Oceans
0.00 %  
34
0.00 %  
25
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Alloys of Rhenium are used as an electric contact material. It can resist withstand arc corrosion.
  • Its catalysts are used in hydrogenation of fine chemicals. Its Alloy with nickel is used to produce turbine blades.
  
  • Yttrium metal is used in different alloys, as it increases the strength of aluminum Magnesium alloy. It is used for radar microwave filter.
  • It is also used as a catalyst in ethene polymerisation.
  
Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Low Toxic  
Highly Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
26
In Bone
0.00 p.p.m.  
99+
0.07 p.p.m.  
30
Physical
Melting Point
3,180.00 °C  
2
1,523.00 °C  
27
Boiling Point
5,627.00 °C  
2
3,337.00 °C  
22
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Silvery White  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
7.00  
3
4.00  
11
Brinell Hardness
1,320.00 MPa  
8
589.00 MPa  
26
Vickers Hardness
1,350.00 MPa  
12
590.00 MPa  
29
Speed of Sound
4,700.00 m/s  
19
3,300.00 m/s  
34
Optical Properties
  
  
Refractive Index
1.90  
18
1.90  
18
Reflectivity
70.00 %  
13
83.00 %  
6
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Re  
Y  
Isotopes
  
  
Known Isotopes
33  
6
19  
20
Electronegativity
  
  
Pauling Electronegativity
1.90  
12
1.22  
39
Sanderson Electronegativity
1.90  
13
0.65  
99+
Allred Rochow Electronegativity
1.46  
16
1.11  
30
Mulliken-Jaffe Electronegativity
1.90  
13
1.22  
38
Allen Electronegativity
1.60  
24
1.12  
99+
Electropositivity
  
  
Pauling Electropositivity
2.10  
99+
2.78  
16
Ionization Energies
  
  
1st Energy Level
760.00 kJ/mol  
20
600.00 kJ/mol  
99+
2nd Energy Level
1,260.00 kJ/mol  
99+
1,180.00 kJ/mol  
99+
3rd Energy Level
2,510.00 kJ/mol  
99+
1,980.00 kJ/mol  
99+
4th Energy Level
3,640.00 kJ/mol  
99+
5,847.00 kJ/mol  
19
5th Energy Level
7,600.00 kJ/mol  
20
7,430.00 kJ/mol  
22
6th Energy Level
7,600.00 kJ/mol  
37
8,970.00 kJ/mol  
23
7th Energy level
7,600.00 kJ/mol  
31
11,190.00 kJ/mol  
18
8th Energy Level
5,560.00 kJ/mol  
99+
12,450.00 kJ/mol  
18
9th Energy Level
5,560.00 kJ/mol  
99+
14,110.00 kJ/mol  
19
10th Energy Level
7,600.00 kJ/mol  
31
18,400.00 kJ/mol  
17
11th Energy Level
7,600.00 kJ/mol  
30
19,900.00 kJ/mol  
18
12th Energy Level
7,600.00 kJ/mol  
99+
36,090.00 kJ/mol  
25
13th Energy Level
7,600.00 kJ/mol  
23
6,000.00 kJ/mol  
99+
14th Energy Level
7,600.00 kJ/mol  
20
6,000.00 kJ/mol  
33
15th Energy Level
76,000.00 kJ/mol  
20
60,000.00 kJ/mol  
99+
16th Energy Level
76,000.00 kJ/mol  
15
60,000.00 kJ/mol  
34
17th Energy Level
760.10 kJ/mol  
36
600.00 kJ/mol  
99+
18th Energy Level
7,600.00 kJ/mol  
26
6,000.00 kJ/mol  
99+
19th Energy Level
760.40 kJ/mol  
33
600.00 kJ/mol  
99+
20th Energy Level
760.00 kJ/mol  
27
600.00 kJ/mol  
99+
21st Energy Level
760.00 kJ/mol  
99+
600.00 kJ/mol  
99+
22nd Energy Level
760.00 kJ/mol  
21
600.00 kJ/mol  
99+
23rd Energy Level
760.00 kJ/mol  
99+
600.00 kJ/mol  
99+
24th Energy Level
760.00 kJ/mol  
18
600.00 kJ/mol  
99+
25th Energy Level
760.00 kJ/mol  
18
600.00 kJ/mol  
99+
26th Energy Level
760.00 kJ/mol  
18
604.50 kJ/mol  
99+
27th Energy Level
760.00 kJ/mol  
17
604.50 kJ/mol  
99+
28th Energy Level
760.00 kJ/mol  
23
604.50 kJ/mol  
99+
29th Energy Level
760.00 kJ/mol  
24
604.50 kJ/mol  
99+
30th Energy Level
760.00 kJ/mol  
18
604.50 kJ/mol  
99+
Electrochemical Equivalent
0.99 g/amp-hr  
99+
1.11 g/amp-hr  
99+
Electron Work Function
4.96 eV  
11
3.10 eV  
99+
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Solubility  
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
75  
99+
39  
99+
Electron Configuration
[Xe] 4f14 5d5 6s2  
[Kr] 4d1 5s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
HCP-Crystal-Structure-of-Yttrium.jpg#100  
Atom
  
  
Number of Protons
75  
40
39  
99+
Number of Neutrons
111  
27
50  
99+
Number of Electrons
75  
40
39  
99+
Radius of an Atom
  
  
Atomic Radius
137.00 pm  
99+
180.00 pm  
16
Covalent Radius
151.00 pm  
36
190.00 pm  
18
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
186.21 amu  
36
88.91 amu  
99+
Atomic Volume
8.85 cm3/mol  
99+
19.80 cm3/mol  
33
Adjacent Atomic Numbers
  
  
Previous Element
Tungsten
  
Strontium
  
Next Element
Osmium
  
Zirconium
  
Valence Electron Potential
180.00 (-eV)  
3
48.00 (-eV)  
31
Lattice Constant
276.10 pm  
99+
364.74 pm  
34
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.62  
17
1.57  
39
Mechanical
Density
  
  
Density At Room Temperature
21.02 g/cm3  
12
4.47 g/cm3  
99+
Density When Liquid (at m.p.)
18.90 g/cm3  
14
4.24 g/cm3  
99+
Tensile Strength
1,070.00 MPa  
3
160.00 MPa  
22
Viscosity
0.00  
25
0.00  
18
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
34
Vapor Pressure at 2000 K
0.00 (Pa)  
40
4.27 (Pa)  
10
Elasticity properties
  
  
Shear Modulus
178.00 GPa  
3
25.60 GPa  
37
Bulk Modulus
370.00 GPa  
2
41.20 GPa  
35
Young's Modulus
463.00 GPa  
2
63.50 GPa  
34
Poisson Ratio
0.30  
14
0.24  
26
Other Mechanical Properties
Ductile, Malleable  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
21.02  
14
4.47  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
8
0.00 H/m  
18
Susceptibility
0.00  
26
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
193.00 nΩ·m  
20
596.00 nΩ·m  
8
Electrical Conductivity
0.05 106/cm Ω  
38
0.02 106/cm Ω  
99+
Electron Affinity
14.50 kJ/mol  
99+
29.60 kJ/mol  
36
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.30 J/(kg K)  
18
Molar Heat Capacity
25.48 J/mol·K  
99+
26.53 J/mol·K  
35
Thermal Conductivity
48.00 W/m·K  
31
17.20 W/m·K  
99+
Critical Temperature
3,459.00 K  
2
1,799.00 K  
31
Thermal Expansion
6.20 µm/(m·K)  
99+
10.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
707.10 kJ/mol  
4
393.00 kJ/mol  
25
Enthalpy of Fusion
33.05 kJ/mol  
2
17.15 kJ/mol  
16
Enthalpy of Atomization
791.00 kJ/mol  
2
418.00 kJ/mol  
23
Standard Molar Entropy
36.90 J/mol.K  
99+
44.40 J/mol.K  
99+
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