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Roentgenium vs Platinum

Roentgenium
Platinum
Platinum vs Roentgenium


Periodic Table
Symbol
Rg  
Pt  
Group Number
11  
7
10  
8
Period Number
7  
6  
Block
d block  
d block  
Element Family
-  
Transition Metal  
CAS Number
54386242  
1
7440064  
99+
Space Group Name
-  
Fm_ 3m  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
Roentgenium is a highly unstable synthetic element.  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
Synthetically Produced  
Mining, Ores of metals, Ores of Minerals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Antonio de Ulloa  
Discovery
In 1994  
In 1735  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
20
Abundance In Sun
-  
0.00 %  
19
Abundance In Meteorites
-  
0.00 %  
25
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
-  
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Roentgenium metal are limited to research purpose only.
  
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
Industrial Uses
-  
Aerospace Industry, Chemical Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Research Purposes  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
-  
Non Toxic  
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
-  
1,772.00 °C  
16
Boiling Point
2,800.00 °C  
38
3,827.00 °C  
15
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silvery White  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
-  
3.50  
12
Brinell Hardness
700.00 MPa  
17
300.00 MPa  
99+
Vickers Hardness
450.00 MPa  
38
400.00 MPa  
99+
Speed of Sound
3,430.00 m/s  
32
2,800.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
2.41  
6
Reflectivity
64.00 %  
19
73.00 %  
10
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Rg  
Pt  
Isotopes
  
  
Known Isotopes
1  
34
35  
4
Electronegativity
  
  
Pauling Electronegativity
0.00  
99+
2.28  
4
Sanderson Electronegativity
1.90  
13
2.28  
5
Allred Rochow Electronegativity
1.30  
25
1.44  
18
Mulliken-Jaffe Electronegativity
0.90  
99+
2.20  
6
Allen Electronegativity
0.80  
99+
1.72  
19
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
1.72  
99+
Ionization Energies
  
  
1st Energy Level
1,022.70 kJ/mol  
3
870.00 kJ/mol  
10
2nd Energy Level
2,074.40 kJ/mol  
10
1,791.00 kJ/mol  
22
3rd Energy Level
3,077.90 kJ/mol  
24
2,277.00 kJ/mol  
99+
4th Energy Level
4,052.40 kJ/mol  
99+
8,702.00 kJ/mol  
6
5th Energy Level
5,306.70 kJ/mol  
99+
8,702.00 kJ/mol  
9
6th Energy Level
11,100.00 kJ/mol  
10
8,700.00 kJ/mol  
27
7th Energy level
5,800.00 kJ/mol  
99+
8,700.00 kJ/mol  
23
8th Energy Level
5,800.00 kJ/mol  
99+
8,700.00 kJ/mol  
23
9th Energy Level
5,650.00 kJ/mol  
99+
5,660.00 kJ/mol  
99+
10th Energy Level
5,800.00 kJ/mol  
99+
8,700.00 kJ/mol  
24
11th Energy Level
8,300.00 kJ/mol  
24
8,700.00 kJ/mol  
21
12th Energy Level
8,300.00 kJ/mol  
99+
8,700.00 kJ/mol  
99+
13th Energy Level
8,700.00 kJ/mol  
16
8,700.00 kJ/mol  
16
14th Energy Level
8,300.00 kJ/mol  
16
870.00 kJ/mol  
99+
15th Energy Level
87,000.00 kJ/mol  
9
87,000.00 kJ/mol  
9
16th Energy Level
83,000.00 kJ/mol  
11
870.00 kJ/mol  
99+
17th Energy Level
830.80 kJ/mol  
30
870.00 kJ/mol  
27
18th Energy Level
8,300.00 kJ/mol  
19
8,700.00 kJ/mol  
16
19th Energy Level
580.00 kJ/mol  
99+
870.00 kJ/mol  
25
20th Energy Level
580.00 kJ/mol  
99+
870.00 kJ/mol  
15
21st Energy Level
5,800.00 kJ/mol  
21
870.00 kJ/mol  
38
22nd Energy Level
580.00 kJ/mol  
99+
870.00 kJ/mol  
13
23rd Energy Level
5,800.00 kJ/mol  
21
870.10 kJ/mol  
39
24th Energy Level
538.70 kJ/mol  
99+
870.00 kJ/mol  
9
25th Energy Level
0.00 kJ/mol  
99+
870.00 kJ/mol  
7
26th Energy Level
580.00 kJ/mol  
99+
870.00 kJ/mol  
7
27th Energy Level
580.00 kJ/mol  
99+
870.10 kJ/mol  
6
28th Energy Level
880.00 kJ/mol  
8
870.10 kJ/mol  
9
29th Energy Level
580.00 kJ/mol  
99+
870.00 kJ/mol  
10
30th Energy Level
0.00 kJ/mol  
99+
870.00 kJ/mol  
7
Electrochemical Equivalent
3.10 g/amp-hr  
18
1.82 g/amp-hr  
39
Electron Work Function
4.90 eV  
12
5.65 eV  
4
Other Chemical Properties
-  
Chemical Stability, Anti Corrosion, Ionization  
Atomic
Atomic Number
111  
7
78  
38
Electron Configuration
[Rn] 5f14 6d9 7s2  
[Xe] 4f14 5d9 6s1  
Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Platinum.jpg#100  
Atom
  
  
Number of Protons
111  
7
78  
38
Number of Neutrons
161  
4
117  
25
Number of Electrons
111  
7
78  
38
Radius of an Atom
  
  
Atomic Radius
200.00 pm  
7
139.00 pm  
99+
Covalent Radius
126.00 pm  
99+
136.00 pm  
99+
Van der Waals Radius
280.00 pm  
6
175.00 pm  
99+
Atomic Weight
281.00 amu  
6
47.87 amu  
99+
Atomic Volume
28.70 cm3/mol  
12
9.09 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Darmstadtium
  
Iridium
  
Next Element
Copernicium
  
Gold
  
Valence Electron Potential
11.90 (-eV)  
99+
392.42 (-eV)  
1
Lattice Constant
0.00 pm  
99+
392.42 pm  
27
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.90  
1
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
28.70 g/cm3  
6
21.45 g/cm3  
11
Density When Liquid (at m.p.)
28.70 g/cm3  
7
19.77 g/cm3  
12
Tensile Strength
65.00 MPa  
33
125.00 MPa  
26
Viscosity
0.00  
25
0.00  
16
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
16
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.07 (Pa)  
18
Elasticity properties
  
  
Shear Modulus
26.00 GPa  
36
61.00 GPa  
14
Bulk Modulus
0.00 GPa  
99+
230.00 GPa  
6
Young's Modulus
12.70 GPa  
99+
168.00 GPa  
15
Poisson Ratio
0.30  
14
0.38  
6
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
28.70  
8
21.45  
13
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
12
0.00 H/m  
14
Susceptibility
0.00  
24
0.00  
20
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.20 nΩ·m  
99+
105.00 nΩ·m  
30
Electrical Conductivity
0.00 106/cm Ω  
99+
0.10 106/cm Ω  
26
Electron Affinity
50.00 kJ/mol  
26
205.30 kJ/mol  
2
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.13 J/(kg K)  
40
Molar Heat Capacity
23.70 J/mol·K  
99+
25.86 J/mol·K  
99+
Thermal Conductivity
0.10 W/m·K  
99+
71.60 W/m·K  
24
Critical Temperature
1,100.00 K  
99+
2,041.00 K  
19
Thermal Expansion
12.60 µm/(m·K)  
40
8.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
580.00 kJ/mol  
12
510.50 kJ/mol  
15
Enthalpy of Fusion
-  
19.70 kJ/mol  
12
Enthalpy of Atomization
580.00 kJ/mol  
14
565.00 kJ/mol  
15
Standard Molar Entropy
57.00 J/mol.K  
30
41.60 J/mol.K  
99+
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