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Rutherfordium Rhodium Comparison

Rutherfordium
Rhodium
Rhodium Rutherfordium comparison


Periodic Table
Symbol
Rf  
Rh  
Group Number
4  
14
9  
9
Period Number
7  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
53850365  
13
7440166  
99+
Space Group Name
-  
Fm_ 3m  
Space Group Number
166.00  
9
225.00  
3
Facts
Interesting Facts
  • Rutherfordium does not occur in nature as it is a synthetic element.
  • Till date Rutherfordium metal has 15 radioisotopes created synthetically.
  
  • 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
Bombarding Plutonium with Accelerated 113 to 115 MeV Neon Ions, Synthetically Produced  
Earth's crust, Found As a By-product, Found in Minerals, Mining  
History
  
  
Who Discovered
Joint Institute for Nuclear Research  
William Hyde Wollaston  
Discovery
In 1964  
In 1804  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
27
Abundance In Sun
-  
0.00 %  
25
Abundance In Meteorites
-  
0.00 %  
36
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
-  
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Rutherfordium metal are limited to research purpose only.
  
  • 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
-  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys, Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
-  
-  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
2,100.00 °C  
11
1,966.00 °C  
12
Boiling Point
5,500.00 °C  
3
3,727.00 °C  
17
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Silvery White  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
-  
6.00  
6
Brinell Hardness
1,300.00 MPa  
9
980.00 MPa  
10
Vickers Hardness
550.00 MPa  
31
1,100.00 MPa  
15
Speed of Sound
6,100.00 m/s  
5
4,700.00 m/s  
19
Optical Properties
  
  
Refractive Index
1.30  
99+
2.40  
7
Reflectivity
65.00 %  
18
84.00 %  
5
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Rf  
Rh  
Isotopes
  
  
Known Isotopes
13  
26
16  
23
Electronegativity
  
  
Pauling Electronegativity
0.00  
99+
2.28  
4
Sanderson Electronegativity
1.90  
13
2.28  
5
Allred Rochow Electronegativity
1.30  
25
1.45  
17
Mulliken-Jaffe Electronegativity
1.30  
33
2.28  
4
Allen Electronegativity
0.90  
99+
1.56  
27
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
1.72  
99+
Ionization Energies
  
  
1st Energy Level
579.90 kJ/mol  
99+
719.70 kJ/mol  
29
2nd Energy Level
1,389.40 kJ/mol  
99+
1,740.00 kJ/mol  
27
3rd Energy Level
2,296.40 kJ/mol  
99+
2,997.00 kJ/mol  
27
4th Energy Level
3,077.90 kJ/mol  
99+
7,197.00 kJ/mol  
11
5th Energy Level
5,790.00 kJ/mol  
99+
7,197.00 kJ/mol  
26
6th Energy Level
11,600.00 kJ/mol  
7
7,197.00 kJ/mol  
40
7th Energy level
5,800.00 kJ/mol  
99+
7,197.00 kJ/mol  
35
8th Energy Level
5,800.00 kJ/mol  
99+
3,480.00 kJ/mol  
99+
9th Energy Level
5,800.00 kJ/mol  
99+
5,090.00 kJ/mol  
99+
10th Energy Level
5,800.00 kJ/mol  
99+
7,197.00 kJ/mol  
33
11th Energy Level
5,800.00 kJ/mol  
99+
7,197.00 kJ/mol  
32
12th Energy Level
5,800.00 kJ/mol  
99+
7,190.00 kJ/mol  
99+
13th Energy Level
5,800.00 kJ/mol  
99+
7,190.00 kJ/mol  
27
14th Energy Level
5,800.00 kJ/mol  
99+
7,197.00 kJ/mol  
21
15th Energy Level
58,000.00 kJ/mol  
99+
71,900.00 kJ/mol  
23
16th Energy Level
58,000.00 kJ/mol  
99+
71,900.00 kJ/mol  
18
17th Energy Level
579.90 kJ/mol  
99+
719.70 kJ/mol  
39
18th Energy Level
3,300.00 kJ/mol  
99+
7,197.00 kJ/mol  
29
19th Energy Level
579.90 kJ/mol  
99+
719.70 kJ/mol  
36
20th Energy Level
580.00 kJ/mol  
99+
719.00 kJ/mol  
30
21st Energy Level
5,800.00 kJ/mol  
21
719.70 kJ/mol  
99+
22nd Energy Level
579.00 kJ/mol  
99+
719.00 kJ/mol  
24
23rd Energy Level
5,800.00 kJ/mol  
21
719.70 kJ/mol  
99+
24th Energy Level
579.10 kJ/mol  
99+
719.70 kJ/mol  
23
25th Energy Level
0.00 kJ/mol  
99+
719.00 kJ/mol  
23
26th Energy Level
580.00 kJ/mol  
99+
719.70 kJ/mol  
23
27th Energy Level
580.00 kJ/mol  
99+
719.70 kJ/mol  
22
28th Energy Level
840.00 kJ/mol  
14
719.70 kJ/mol  
28
29th Energy Level
580.60 kJ/mol  
99+
719.70 kJ/mol  
29
30th Energy Level
0.00 kJ/mol  
99+
719.00 kJ/mol  
23
Electrochemical Equivalent
3.00 g/amp-hr  
21
1.28 g/amp-hr  
99+
Electron Work Function
6.00 eV  
1
4.98 eV  
10
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Anti Corrosion, Ionization, Radioactive Isotopes  
Atomic
Atomic Number
104  
14
45  
99+
Electron Configuration
[Rn] 5f14 6d2 7s2  
[Kr] 4d8 5s1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Rhodium.jpg#100  
Atom
  
  
Number of Protons
104  
14
45  
99+
Number of Neutrons
157  
8
58  
99+
Number of Electrons
104  
14
45  
99+
Radius of an Atom
  
  
Atomic Radius
150.00 pm  
35
134.00 pm  
99+
Covalent Radius
157.00 pm  
33
142.00 pm  
99+
Van der Waals Radius
250.00 pm  
10
200.00 pm  
35
Atomic Weight
267.00 amu  
11
102.91 amu  
99+
Atomic Volume
23.20 cm3/mol  
15
8.30 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Lawrencium
  
Ruthenium
  
Next Element
Dubnium
  
Palladium
  
Valence Electron Potential
6.00 (-eV)  
99+
64.00 (-eV)  
22
Lattice Constant
-  
380.34 pm  
30
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.60  
22
1.73  
7
Mechanical
Density
  
  
Density At Room Temperature
23.20 g/cm3  
8
12.41 g/cm3  
30
Density When Liquid (at m.p.)
23.20 g/cm3  
9
10.70 g/cm3  
35
Tensile Strength
23.00 MPa  
99+
951.00 MPa  
5
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.02 (Pa)  
19
Elasticity properties
  
  
Shear Modulus
23.00 GPa  
99+
150.00 GPa  
6
Bulk Modulus
0.00 GPa  
99+
275.00 GPa  
5
Young's Modulus
12.80 GPa  
99+
380.00 GPa  
5
Poisson Ratio
0.30  
14
0.26  
22
Other Mechanical Properties
-  
Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
23.00  
10
12.41  
32
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
10
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.29 nΩ·m  
99+
43.30 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.21 106/cm Ω  
8
Electron Affinity
50.00 kJ/mol  
26
109.70 kJ/mol  
8
Thermal
Specific Heat
0.27 J/(kg K)  
19
0.24 J/(kg K)  
22
Molar Heat Capacity
23.20 J/mol·K  
99+
24.98 J/mol·K  
99+
Thermal Conductivity
0.23 W/m·K  
99+
150.00 W/m·K  
9
Critical Temperature
2,400.00 K  
12
2,237.00 K  
13
Thermal Expansion
23.20 µm/(m·K)  
17
8.20 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
580.00 kJ/mol  
12
495.40 kJ/mol  
16
Enthalpy of Fusion
-  
21.76 kJ/mol  
10
Enthalpy of Atomization
580.00 kJ/mol  
14
556.50 kJ/mol  
16
Standard Molar Entropy
57.60 J/mol.K  
28
31.50 J/mol.K  
99+
Summary >>
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