Home
 Compare Metals

Yttrium vs Rhodium

Yttrium
Rhodium
Rhodium vs Yttrium


Periodic Table
Symbol
Y  
Rh  
Group Number
3  
15
9  
9
Period Number
5  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440655  
25
7440166  
99+
Space Group Name
P63/mmc  
Fm_ 3m  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
  • 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.
  
Sources
Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Found As a By-product, Found in Minerals, Mining  
History
  
  
Who Discovered
Johan Gadolin  
William Hyde Wollaston  
Discovery
In 1794  
In 1804  
Abundance
  
  
Abundance In Universe
0.00 %  
18
0.00 %  
27
Abundance In Sun
0.00 %  
26
0.00 %  
25
Abundance In Meteorites
0.00 %  
21
0.00 %  
36
Abundance In Earth's Crust
0.00 %  
22
0.00 %  
99+
Abundance In Oceans
0.00 %  
25
-  
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • 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.
  
  • 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.
  
Industrial Uses
Electrical Industry, Electronic Industry  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Highly Toxic  
-  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
26
0.00 Blood/mg dm-3  
37
In Bone
0.07 p.p.m.  
30
0.00 p.p.m.  
99+
Physical
Melting Point
1,523.00 °C  
27
1,966.00 °C  
12
Boiling Point
3,337.00 °C  
22
3,727.00 °C  
17
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Silvery White  
Luster
-  
Metallic  
Hardness
  
  
Mohs Hardness
4.00  
11
6.00  
6
Brinell Hardness
589.00 MPa  
26
980.00 MPa  
10
Vickers Hardness
590.00 MPa  
29
1,100.00 MPa  
15
Speed of Sound
3,300.00 m/s  
34
4,700.00 m/s  
19
Optical Properties
  
  
Refractive Index
1.90  
18
2.40  
7
Reflectivity
83.00 %  
6
84.00 %  
5
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Y  
Rh  
Isotopes
  
  
Known Isotopes
19  
20
16  
23
Electronegativity
  
  
Pauling Electronegativity
1.22  
39
2.28  
4
Sanderson Electronegativity
0.65  
99+
2.28  
5
Allred Rochow Electronegativity
1.11  
30
1.45  
17
Mulliken-Jaffe Electronegativity
1.22  
38
2.28  
4
Allen Electronegativity
1.12  
99+
1.56  
27
Electropositivity
  
  
Pauling Electropositivity
2.78  
16
1.72  
99+
Ionization Energies
  
  
1st Energy Level
600.00 kJ/mol  
99+
719.70 kJ/mol  
29
2nd Energy Level
1,180.00 kJ/mol  
99+
1,740.00 kJ/mol  
27
3rd Energy Level
1,980.00 kJ/mol  
99+
2,997.00 kJ/mol  
27
4th Energy Level
5,847.00 kJ/mol  
19
7,197.00 kJ/mol  
11
5th Energy Level
7,430.00 kJ/mol  
22
7,197.00 kJ/mol  
26
6th Energy Level
8,970.00 kJ/mol  
23
7,197.00 kJ/mol  
40
7th Energy level
11,190.00 kJ/mol  
18
7,197.00 kJ/mol  
35
8th Energy Level
12,450.00 kJ/mol  
18
3,480.00 kJ/mol  
99+
9th Energy Level
14,110.00 kJ/mol  
19
5,090.00 kJ/mol  
99+
10th Energy Level
18,400.00 kJ/mol  
17
7,197.00 kJ/mol  
33
11th Energy Level
19,900.00 kJ/mol  
18
7,197.00 kJ/mol  
32
12th Energy Level
36,090.00 kJ/mol  
25
7,190.00 kJ/mol  
99+
13th Energy Level
6,000.00 kJ/mol  
99+
7,190.00 kJ/mol  
27
14th Energy Level
6,000.00 kJ/mol  
33
7,197.00 kJ/mol  
21
15th Energy Level
60,000.00 kJ/mol  
99+
71,900.00 kJ/mol  
23
16th Energy Level
60,000.00 kJ/mol  
34
71,900.00 kJ/mol  
18
17th Energy Level
600.00 kJ/mol  
99+
719.70 kJ/mol  
39
18th Energy Level
6,000.00 kJ/mol  
99+
7,197.00 kJ/mol  
29
19th Energy Level
600.00 kJ/mol  
99+
719.70 kJ/mol  
36
20th Energy Level
600.00 kJ/mol  
99+
719.00 kJ/mol  
30
21st Energy Level
600.00 kJ/mol  
99+
719.70 kJ/mol  
99+
22nd Energy Level
600.00 kJ/mol  
99+
719.00 kJ/mol  
24
23rd Energy Level
600.00 kJ/mol  
99+
719.70 kJ/mol  
99+
24th Energy Level
600.00 kJ/mol  
99+
719.70 kJ/mol  
23
25th Energy Level
600.00 kJ/mol  
99+
719.00 kJ/mol  
23
26th Energy Level
604.50 kJ/mol  
99+
719.70 kJ/mol  
23
27th Energy Level
604.50 kJ/mol  
99+
719.70 kJ/mol  
22
28th Energy Level
604.50 kJ/mol  
99+
719.70 kJ/mol  
28
29th Energy Level
604.50 kJ/mol  
99+
719.70 kJ/mol  
29
30th Energy Level
604.50 kJ/mol  
99+
719.00 kJ/mol  
23
Electrochemical Equivalent
1.11 g/amp-hr  
99+
1.28 g/amp-hr  
99+
Electron Work Function
3.10 eV  
99+
4.98 eV  
10
Other Chemical Properties
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes  
Atomic
Atomic Number
39  
99+
45  
99+
Electron Configuration
[Kr] 4d1 5s2  
[Kr] 4d8 5s1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100  
FCC-Crystal-Structure-of-Rhodium.jpg#100  
Atom
  
  
Number of Protons
39  
99+
45  
99+
Number of Neutrons
50  
99+
58  
99+
Number of Electrons
39  
99+
45  
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
16
134.00 pm  
99+
Covalent Radius
190.00 pm  
18
142.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
88.91 amu  
99+
102.91 amu  
99+
Atomic Volume
19.80 cm3/mol  
33
8.30 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Strontium
  
Ruthenium
  
Next Element
Zirconium
  
Palladium
  
Valence Electron Potential
48.00 (-eV)  
31
64.00 (-eV)  
22
Lattice Constant
364.74 pm  
34
380.34 pm  
30
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
39
1.73  
7
Mechanical
Density
  
  
Density At Room Temperature
4.47 g/cm3  
99+
12.41 g/cm3  
30
Density When Liquid (at m.p.)
4.24 g/cm3  
99+
10.70 g/cm3  
35
Tensile Strength
160.00 MPa  
22
951.00 MPa  
5
Viscosity
0.00  
18
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
34
0.00 (Pa)  
37
Vapor Pressure at 2000 K
4.27 (Pa)  
10
0.02 (Pa)  
19
Elasticity properties
  
  
Shear Modulus
25.60 GPa  
37
150.00 GPa  
6
Bulk Modulus
41.20 GPa  
35
275.00 GPa  
5
Young's Modulus
63.50 GPa  
34
380.00 GPa  
5
Poisson Ratio
0.24  
26
0.26  
22
Other Mechanical Properties
Ductile  
Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
4.47  
99+
12.41  
32
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
18
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
596.00 nΩ·m  
8
43.30 nΩ·m  
99+
Electrical Conductivity
0.02 106/cm Ω  
99+
0.21 106/cm Ω  
8
Electron Affinity
29.60 kJ/mol  
36
109.70 kJ/mol  
8
Thermal
Specific Heat
0.30 J/(kg K)  
18
0.24 J/(kg K)  
22
Molar Heat Capacity
26.53 J/mol·K  
35
24.98 J/mol·K  
99+
Thermal Conductivity
17.20 W/m·K  
99+
150.00 W/m·K  
9
Critical Temperature
1,799.00 K  
31
2,237.00 K  
13
Thermal Expansion
10.60 µm/(m·K)  
99+
8.20 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
393.00 kJ/mol  
25
495.40 kJ/mol  
16
Enthalpy of Fusion
17.15 kJ/mol  
16
21.76 kJ/mol  
10
Enthalpy of Atomization
418.00 kJ/mol  
23
556.50 kJ/mol  
16
Standard Molar Entropy
44.40 J/mol.K  
99+
31.50 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!