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Roentgenium vs Bismuth

Roentgenium
Bismuth
Bismuth vs Roentgenium


Periodic Table
Symbol
Rg  
Bi  
Group Number
11  
7
15  
3
Period Number
7  
6  
Block
d block  
p block  
Element Family
-  
Post-​Transition  
CAS Number
54386242  
1
7440699  
22
Space Group Name
-  
C12/m1  
Space Group Number
194.00  
7
12.00  
15
Facts
Interesting Facts
Roentgenium is a highly unstable synthetic element.  
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
  
Sources
Synthetically Produced  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Claude François Geoffroy  
Discovery
In 1994  
In 1753  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
26
Abundance In Sun
-  
0.00 %  
14
Abundance In Meteorites
-  
0.00 %  
99+
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
0.00 %  
24
Abundance In Humans
-  
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Roentgenium metal are limited to research purpose only.
  
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
  
Industrial Uses
-  
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Pharmaceutical Industry  
Other Uses
Research Purposes  
Alloys  
Biological Properties
  
  
Toxicity
-  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.02 Blood/mg dm-3  
20
In Bone
0.00 p.p.m.  
99+
0.20 p.p.m.  
27
Physical
Melting Point
-  
271.30 °C  
99+
Boiling Point
2,800.00 °C  
38
1,560.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silver  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
-  
2.25  
16
Brinell Hardness
700.00 MPa  
17
70.00 MPa  
99+
Vickers Hardness
450.00 MPa  
38
30.00 MPa  
99+
Speed of Sound
3,430.00 m/s  
32
1,790.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
2.50  
5
Reflectivity
64.00 %  
19
70.00 %  
13
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Rg  
Bi  
Isotopes
  
  
Known Isotopes
1  
34
33  
6
Electronegativity
  
  
Pauling Electronegativity
0.00  
99+
2.02  
7
Sanderson Electronegativity
1.90  
13
2.34  
3
Allred Rochow Electronegativity
1.30  
25
1.67  
7
Mulliken-Jaffe Electronegativity
0.90  
99+
2.15  
8
Allen Electronegativity
0.80  
99+
2.01  
5
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
1.98  
99+
Ionization Energies
  
  
1st Energy Level
1,022.70 kJ/mol  
3
703.00 kJ/mol  
35
2nd Energy Level
2,074.40 kJ/mol  
10
1,610.00 kJ/mol  
34
3rd Energy Level
3,077.90 kJ/mol  
24
2,466.00 kJ/mol  
99+
4th Energy Level
4,052.40 kJ/mol  
99+
4,370.00 kJ/mol  
38
5th Energy Level
5,306.70 kJ/mol  
99+
5,400.00 kJ/mol  
99+
6th Energy Level
11,100.00 kJ/mol  
10
8,520.00 kJ/mol  
29
7th Energy level
5,800.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+
8th Energy Level
5,800.00 kJ/mol  
99+
7,030.00 kJ/mol  
37
9th Energy Level
5,650.00 kJ/mol  
99+
7,030.00 kJ/mol  
34
10th Energy Level
5,800.00 kJ/mol  
99+
7,030.00 kJ/mol  
38
11th Energy Level
8,300.00 kJ/mol  
24
7,030.00 kJ/mol  
36
12th Energy Level
8,300.00 kJ/mol  
99+
7,030.00 kJ/mol  
99+
13th Energy Level
8,700.00 kJ/mol  
16
7,030.00 kJ/mol  
32
14th Energy Level
8,300.00 kJ/mol  
16
7,030.00 kJ/mol  
22
15th Energy Level
87,000.00 kJ/mol  
9
70,300.00 kJ/mol  
28
16th Energy Level
83,000.00 kJ/mol  
11
70,300.00 kJ/mol  
23
17th Energy Level
830.80 kJ/mol  
30
703.00 kJ/mol  
99+
18th Energy Level
8,300.00 kJ/mol  
19
7,030.00 kJ/mol  
34
19th Energy Level
580.00 kJ/mol  
99+
703.00 kJ/mol  
40
20th Energy Level
580.00 kJ/mol  
99+
703.00 kJ/mol  
34
21st Energy Level
5,800.00 kJ/mol  
21
7,030.00 kJ/mol  
12
22nd Energy Level
580.00 kJ/mol  
99+
703.00 kJ/mol  
28
23rd Energy Level
5,800.00 kJ/mol  
21
7,030.00 kJ/mol  
10
24th Energy Level
538.70 kJ/mol  
99+
703.00 kJ/mol  
27
25th Energy Level
0.00 kJ/mol  
99+
703.00 kJ/mol  
29
26th Energy Level
580.00 kJ/mol  
99+
703.00 kJ/mol  
28
27th Energy Level
580.00 kJ/mol  
99+
703.00 kJ/mol  
29
28th Energy Level
880.00 kJ/mol  
8
703.00 kJ/mol  
34
29th Energy Level
580.00 kJ/mol  
99+
703.00 kJ/mol  
35
30th Energy Level
0.00 kJ/mol  
99+
703.00 kJ/mol  
29
Electrochemical Equivalent
3.10 g/amp-hr  
18
2.60 g/amp-hr  
23
Electron Work Function
4.90 eV  
12
4.22 eV  
29
Other Chemical Properties
-  
Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
111  
7
83  
33
Electron Configuration
[Rn] 5f14 6d9 7s2  
[Xe] 4f14 5d10 6s2 6p3  
Crystal Structure
Body Centered Cubic (BCC)  
Rhombohedral (RHO)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
RHO-Crystal-Structure-of-Bismuth.jpg#100  
Atom
  
  
Number of Protons
111  
7
83  
33
Number of Neutrons
161  
4
126  
19
Number of Electrons
111  
7
83  
33
Radius of an Atom
  
  
Atomic Radius
200.00 pm  
7
156.00 pm  
31
Covalent Radius
126.00 pm  
99+
148.00 pm  
38
Van der Waals Radius
280.00 pm  
6
207.00 pm  
33
Atomic Weight
281.00 amu  
6
208.98 amu  
29
Atomic Volume
28.70 cm3/mol  
12
21.30 cm3/mol  
23
Adjacent Atomic Numbers
  
  
Previous Element
Darmstadtium
  
Lead
  
Next Element
Copernicium
  
Polonium
  
Valence Electron Potential
11.90 (-eV)  
99+
41.90 (-eV)  
99+
Lattice Constant
0.00 pm  
99+
667.40 pm  
2
Lattice Angles
-  
-  
Lattice C/A Ratio
1.90  
1
1.86  
4
Mechanical
Density
  
  
Density At Room Temperature
28.70 g/cm3  
6
9.78 g/cm3  
99+
Density When Liquid (at m.p.)
28.70 g/cm3  
7
10.05 g/cm3  
99+
Tensile Strength
65.00 MPa  
33
32.00 MPa  
99+
Viscosity
0.00  
25
0.00  
29
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.00 (Pa)  
24
Elasticity properties
  
  
Shear Modulus
26.00 GPa  
36
12.00 GPa  
99+
Bulk Modulus
0.00 GPa  
99+
31.00 GPa  
99+
Young's Modulus
12.70 GPa  
99+
32.00 GPa  
99+
Poisson Ratio
0.30  
14
0.33  
11
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
28.70  
8
9.79  
99+
Magnetic Ordering
-  
Diamagnetic  
Permeability
0.00 H/m  
12
0.00 H/m  
20
Susceptibility
0.00  
24
0.00  
36
Electrical Properties
  
  
Electrical Property
-  
Semiconductor  
Resistivity
0.20 nΩ·m  
99+
1.29 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.01 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
91.20 kJ/mol  
13
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.12 J/(kg K)  
99+
Molar Heat Capacity
23.70 J/mol·K  
99+
25.52 J/mol·K  
99+
Thermal Conductivity
0.10 W/m·K  
99+
7.97 W/m·K  
99+
Critical Temperature
1,100.00 K  
99+
544.00 K  
99+
Thermal Expansion
12.60 µm/(m·K)  
40
13.40 µm/(m·K)  
34
Enthalpy
  
  
Enthalpy of Vaporization
580.00 kJ/mol  
12
151.00 kJ/mol  
99+
Enthalpy of Fusion
-  
10.90 kJ/mol  
39
Enthalpy of Atomization
580.00 kJ/mol  
14
207.10 kJ/mol  
99+
Standard Molar Entropy
57.00 J/mol.K  
30
56.70 J/mol.K  
32
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