Home
 Compare Metals

Rhodium vs Yttrium

Rhodium
Yttrium
Yttrium vs Rhodium


Periodic Table
Symbol
Rh  
Y  
Group Number
9  
9
3  
15
Period Number
5  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440166  
99+
7440655  
25
Space Group Name
Fm_ 3m  
P63/mmc  
Space Group Number
225.00  
3
194.00  
7
Facts
Interesting Facts
  • Rhodium is the rarest element out of all non-radioactive metals on the earth .
  • Rhodium is one of the most durable and hard metal, which also have high reflectance.
  
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
Sources
Earth's crust, Found As a By-product, Found in Minerals, Mining  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
William Hyde Wollaston  
Johan Gadolin  
Discovery
In 1804  
In 1794  
Abundance
  
  
Abundance In Universe
0.00 %  
27
0.00 %  
18
Abundance In Sun
0.00 %  
25
0.00 %  
26
Abundance In Meteorites
0.00 %  
36
0.00 %  
21
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
22
Abundance In Oceans
-  
0.00 %  
25
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Rhodium metal is mainly used in catalytic converters for cars as it reduces nitrogen oxides in exhaust gases.
  • It is used as an industrial catalyst for nitric acid, acetic acid, hydrogenation reaction, etc.
  
  • 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, Electrical Industry, Electronic Industry  
Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
-  
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
1,966.00 °C  
12
1,523.00 °C  
27
Boiling Point
3,727.00 °C  
17
3,337.00 °C  
22
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery White  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
6.00  
6
4.00  
11
Brinell Hardness
980.00 MPa  
10
589.00 MPa  
26
Vickers Hardness
1,100.00 MPa  
15
590.00 MPa  
29
Speed of Sound
4,700.00 m/s  
19
3,300.00 m/s  
34
Optical Properties
  
  
Refractive Index
2.40  
7
1.90  
18
Reflectivity
84.00 %  
5
83.00 %  
6
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Rh  
Y  
Isotopes
  
  
Known Isotopes
16  
23
19  
20
Electronegativity
  
  
Pauling Electronegativity
2.28  
4
1.22  
39
Sanderson Electronegativity
2.28  
5
0.65  
99+
Allred Rochow Electronegativity
1.45  
17
1.11  
30
Mulliken-Jaffe Electronegativity
2.28  
4
1.22  
38
Allen Electronegativity
1.56  
27
1.12  
99+
Electropositivity
  
  
Pauling Electropositivity
1.72  
99+
2.78  
16
Ionization Energies
  
  
1st Energy Level
719.70 kJ/mol  
29
600.00 kJ/mol  
99+
2nd Energy Level
1,740.00 kJ/mol  
27
1,180.00 kJ/mol  
99+
3rd Energy Level
2,997.00 kJ/mol  
27
1,980.00 kJ/mol  
99+
4th Energy Level
7,197.00 kJ/mol  
11
5,847.00 kJ/mol  
19
5th Energy Level
7,197.00 kJ/mol  
26
7,430.00 kJ/mol  
22
6th Energy Level
7,197.00 kJ/mol  
40
8,970.00 kJ/mol  
23
7th Energy level
7,197.00 kJ/mol  
35
11,190.00 kJ/mol  
18
8th Energy Level
3,480.00 kJ/mol  
99+
12,450.00 kJ/mol  
18
9th Energy Level
5,090.00 kJ/mol  
99+
14,110.00 kJ/mol  
19
10th Energy Level
7,197.00 kJ/mol  
33
18,400.00 kJ/mol  
17
11th Energy Level
7,197.00 kJ/mol  
32
19,900.00 kJ/mol  
18
12th Energy Level
7,190.00 kJ/mol  
99+
36,090.00 kJ/mol  
25
13th Energy Level
7,190.00 kJ/mol  
27
6,000.00 kJ/mol  
99+
14th Energy Level
7,197.00 kJ/mol  
21
6,000.00 kJ/mol  
33
15th Energy Level
71,900.00 kJ/mol  
23
60,000.00 kJ/mol  
99+
16th Energy Level
71,900.00 kJ/mol  
18
60,000.00 kJ/mol  
34
17th Energy Level
719.70 kJ/mol  
39
600.00 kJ/mol  
99+
18th Energy Level
7,197.00 kJ/mol  
29
6,000.00 kJ/mol  
99+
19th Energy Level
719.70 kJ/mol  
36
600.00 kJ/mol  
99+
20th Energy Level
719.00 kJ/mol  
30
600.00 kJ/mol  
99+
21st Energy Level
719.70 kJ/mol  
99+
600.00 kJ/mol  
99+
22nd Energy Level
719.00 kJ/mol  
24
600.00 kJ/mol  
99+
23rd Energy Level
719.70 kJ/mol  
99+
600.00 kJ/mol  
99+
24th Energy Level
719.70 kJ/mol  
23
600.00 kJ/mol  
99+
25th Energy Level
719.00 kJ/mol  
23
600.00 kJ/mol  
99+
26th Energy Level
719.70 kJ/mol  
23
604.50 kJ/mol  
99+
27th Energy Level
719.70 kJ/mol  
22
604.50 kJ/mol  
99+
28th Energy Level
719.70 kJ/mol  
28
604.50 kJ/mol  
99+
29th Energy Level
719.70 kJ/mol  
29
604.50 kJ/mol  
99+
30th Energy Level
719.00 kJ/mol  
23
604.50 kJ/mol  
99+
Electrochemical Equivalent
1.28 g/amp-hr  
99+
1.11 g/amp-hr  
99+
Electron Work Function
4.98 eV  
10
3.10 eV  
99+
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes  
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
45  
99+
39  
99+
Electron Configuration
[Kr] 4d8 5s1  
[Kr] 4d1 5s2  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Rhodium.jpg#100  
HCP-Crystal-Structure-of-Yttrium.jpg#100  
Atom
  
  
Number of Protons
45  
99+
39  
99+
Number of Neutrons
58  
99+
50  
99+
Number of Electrons
45  
99+
39  
99+
Radius of an Atom
  
  
Atomic Radius
134.00 pm  
99+
180.00 pm  
16
Covalent Radius
142.00 pm  
99+
190.00 pm  
18
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
102.91 amu  
99+
88.91 amu  
99+
Atomic Volume
8.30 cm3/mol  
99+
19.80 cm3/mol  
33
Adjacent Atomic Numbers
  
  
Previous Element
Ruthenium
  
Strontium
  
Next Element
Palladium
  
Zirconium
  
Valence Electron Potential
64.00 (-eV)  
22
48.00 (-eV)  
31
Lattice Constant
380.34 pm  
30
364.74 pm  
34
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.73  
7
1.57  
39
Mechanical
Density
  
  
Density At Room Temperature
12.41 g/cm3  
30
4.47 g/cm3  
99+
Density When Liquid (at m.p.)
10.70 g/cm3  
35
4.24 g/cm3  
99+
Tensile Strength
951.00 MPa  
5
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
0.02 (Pa)  
19
4.27 (Pa)  
10
Elasticity properties
  
  
Shear Modulus
150.00 GPa  
6
25.60 GPa  
37
Bulk Modulus
275.00 GPa  
5
41.20 GPa  
35
Young's Modulus
380.00 GPa  
5
63.50 GPa  
34
Poisson Ratio
0.26  
22
0.24  
26
Other Mechanical Properties
Malleable  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
12.41  
32
4.47  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
18
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
43.30 nΩ·m  
99+
596.00 nΩ·m  
8
Electrical Conductivity
0.21 106/cm Ω  
8
0.02 106/cm Ω  
99+
Electron Affinity
109.70 kJ/mol  
8
29.60 kJ/mol  
36
Thermal
Specific Heat
0.24 J/(kg K)  
22
0.30 J/(kg K)  
18
Molar Heat Capacity
24.98 J/mol·K  
99+
26.53 J/mol·K  
35
Thermal Conductivity
150.00 W/m·K  
9
17.20 W/m·K  
99+
Critical Temperature
2,237.00 K  
13
1,799.00 K  
31
Thermal Expansion
8.20 µm/(m·K)  
99+
10.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
495.40 kJ/mol  
16
393.00 kJ/mol  
25
Enthalpy of Fusion
21.76 kJ/mol  
10
17.15 kJ/mol  
16
Enthalpy of Atomization
556.50 kJ/mol  
16
418.00 kJ/mol  
23
Standard Molar Entropy
31.50 J/mol.K  
99+
44.40 J/mol.K  
99+
Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!