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Uranium Rhodium Comparison

Uranium
Rhodium
Rhodium Uranium comparison


Periodic Table
Symbol
U  
Rh  
Group Number
0  
18
9  
9
Period Number
7  
5  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440611  
28
7440166  
99+
Space Group Name
Cmcm  
Fm_ 3m  
Space Group Number
63.00  
13
225.00  
3
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • 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
Earth's crust, Mining, Ores of Minerals  
Earth's crust, Found As a By-product, Found in Minerals, Mining  
History
  
  
Who Discovered
-  
William Hyde Wollaston  
Discovery
In 1789  
In 1804  
Abundance
  
  
Abundance In Universe
0.00 %  
30
0.00 %  
27
Abundance In Sun
0.00 %  
26
0.00 %  
25
Abundance In Meteorites
0.00 %  
99+
0.00 %  
36
Abundance In Earth's Crust
0.00 %  
36
0.00 %  
99+
Abundance In Oceans
0.00 %  
11
-  
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
  • 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
Ammunition Industry, Chemical Industry  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Alloys  
Biological Properties
  
  
Toxicity
Toxic  
-  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
37
In Bone
1.20 p.p.m.  
19
0.00 p.p.m.  
99+
Physical
Melting Point
1,132.00 °C  
39
1,966.00 °C  
12
Boiling Point
3,818.00 °C  
16
3,727.00 °C  
17
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
6.00  
6
Brinell Hardness
2,350.00 MPa  
2
980.00 MPa  
10
Vickers Hardness
1,960.00 MPa  
6
1,100.00 MPa  
15
Speed of Sound
3,155.00 m/s  
36
4,700.00 m/s  
19
Optical Properties
  
  
Refractive Index
1.38  
40
2.40  
7
Reflectivity
80.00 %  
7
84.00 %  
5
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
U  
Rh  
Isotopes
  
  
Known Isotopes
25  
14
16  
23
Electronegativity
  
  
Pauling Electronegativity
1.38  
29
2.28  
4
Sanderson Electronegativity
1.38  
22
2.28  
5
Allred Rochow Electronegativity
1.22  
27
1.45  
17
Mulliken-Jaffe Electronegativity
1.38  
29
2.28  
4
Allen Electronegativity
1.38  
36
1.56  
27
Electropositivity
  
  
Pauling Electropositivity
2.62  
26
1.72  
99+
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
29
2nd Energy Level
1,420.00 kJ/mol  
99+
1,740.00 kJ/mol  
27
3rd Energy Level
1,900.00 kJ/mol  
99+
2,997.00 kJ/mol  
27
4th Energy Level
3,145.00 kJ/mol  
99+
7,197.00 kJ/mol  
11
5th Energy Level
5,976.00 kJ/mol  
99+
7,197.00 kJ/mol  
26
6th Energy Level
5,976.00 kJ/mol  
99+
7,197.00 kJ/mol  
40
7th Energy level
5,970.00 kJ/mol  
99+
7,197.00 kJ/mol  
35
8th Energy Level
5,976.00 kJ/mol  
99+
3,480.00 kJ/mol  
99+
9th Energy Level
5,976.00 kJ/mol  
99+
5,090.00 kJ/mol  
99+
10th Energy Level
5,976.00 kJ/mol  
99+
7,197.00 kJ/mol  
33
11th Energy Level
5,976.00 kJ/mol  
99+
7,197.00 kJ/mol  
32
12th Energy Level
5,970.00 kJ/mol  
99+
7,190.00 kJ/mol  
99+
13th Energy Level
5,970.00 kJ/mol  
99+
7,190.00 kJ/mol  
27
14th Energy Level
5,970.00 kJ/mol  
34
7,197.00 kJ/mol  
21
15th Energy Level
59,700.00 kJ/mol  
99+
71,900.00 kJ/mol  
23
16th Energy Level
59,700.00 kJ/mol  
35
71,900.00 kJ/mol  
18
17th Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
39
18th Energy Level
5,976.00 kJ/mol  
99+
7,197.00 kJ/mol  
29
19th Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
36
20th Energy Level
597.00 kJ/mol  
99+
719.00 kJ/mol  
30
21st Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
99+
22nd Energy Level
597.00 kJ/mol  
99+
719.00 kJ/mol  
24
23rd Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
99+
24th Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
23
25th Energy Level
597.60 kJ/mol  
99+
719.00 kJ/mol  
23
26th Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
23
27th Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
22
28th Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
28
29th Energy Level
597.60 kJ/mol  
99+
719.70 kJ/mol  
29
30th Energy Level
597.60 kJ/mol  
99+
719.00 kJ/mol  
23
Electrochemical Equivalent
1.48 g/amp-hr  
99+
1.28 g/amp-hr  
99+
Electron Work Function
3.63 eV  
99+
4.98 eV  
10
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Anti Corrosion, Ionization, Radioactive Isotopes  
Atomic
Atomic Number
92  
26
45  
99+
Electron Configuration
[Rn] 5f3 6d1 7s2  
[Kr] 4d8 5s1  
Crystal Structure
Orthorhombic (ORTH)  
Face Centered Cubic (FCC)  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
FCC-Crystal-Structure-of-Rhodium.jpg#100  
Atom
  
  
Number of Protons
92  
26
45  
99+
Number of Neutrons
146  
14
58  
99+
Number of Electrons
92  
26
45  
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm  
31
134.00 pm  
99+
Covalent Radius
196.00 pm  
14
142.00 pm  
99+
Van der Waals Radius
186.00 pm  
40
200.00 pm  
35
Atomic Weight
238.03 amu  
21
102.91 amu  
99+
Atomic Volume
12.59 cm3/mol  
99+
8.30 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Ruthenium
  
Next Element
Neptunium
  
Palladium
  
Valence Electron Potential
170.00 (-eV)  
4
64.00 (-eV)  
22
Lattice Constant
295.08 pm  
99+
380.34 pm  
30
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.02  
99+
1.73  
7
Mechanical
Density
  
  
Density At Room Temperature
19.10 g/cm3  
17
12.41 g/cm3  
30
Density When Liquid (at m.p.)
17.30 g/cm3  
17
10.70 g/cm3  
35
Tensile Strength
100.00 MPa  
28
951.00 MPa  
5
Viscosity
0.00  
21
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.01 (Pa)  
20
0.02 (Pa)  
19
Elasticity properties
  
  
Shear Modulus
111.00 GPa  
10
150.00 GPa  
6
Bulk Modulus
100.00 GPa  
16
275.00 GPa  
5
Young's Modulus
208.00 GPa  
11
380.00 GPa  
5
Poisson Ratio
0.23  
30
0.26  
22
Other Mechanical Properties
Ductile, Malleable  
Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
18.80  
19
12.41  
32
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Poor Conductor  
Conductor  
Resistivity
0.28 nΩ·m  
99+
43.30 nΩ·m  
99+
Electrical Conductivity
0.04 106/cm Ω  
99+
0.21 106/cm Ω  
8
Electron Affinity
50.60 kJ/mol  
25
109.70 kJ/mol  
8
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.24 J/(kg K)  
22
Molar Heat Capacity
27.67 J/mol·K  
18
24.98 J/mol·K  
99+
Thermal Conductivity
27.50 W/m·K  
99+
150.00 W/m·K  
9
Critical Temperature
1,405.00 K  
99+
2,237.00 K  
13
Thermal Expansion
13.90 µm/(m·K)  
30
8.20 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol  
18
495.40 kJ/mol  
16
Enthalpy of Fusion
15.48 kJ/mol  
19
21.76 kJ/mol  
10
Enthalpy of Atomization
489.50 kJ/mol  
18
556.50 kJ/mol  
16
Standard Molar Entropy
50.20 J/mol.K  
99+
31.50 J/mol.K  
99+
Summary >>
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