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Bohrium vs Copernicium

Bohrium
Copernicium
Copernicium vs Bohrium


Periodic Table
Symbol
Bh  
Cn  
Group Number
7  
11
12  
6
Period Number
7  
7  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
54037148  
12
54084263  
7
Space Group Name
-  
-  
Space Group Number
276.00  
1
187.00  
8
Facts
Interesting Facts
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Copernicium was first synthesized in 1996 by a German research team.  
Sources
Found in Minerals, Mining, Synthetically Produced  
Synthetically Produced  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Gesellschaft für Schwerionenforschung  
Discovery
In 1981  
In 1996  
Abundance
  
  
Abundance In Universe
0.00 %  
37
0.00 %  
39
Abundance In Sun
-  
-  
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
-  
-  
Uses
Uses & Benefits
  • Currently known uses of Bohrium metal are limited to research purpose only.
  
  • Currently known uses of Copernicium metal are limited to research purpose only.
  
Industrial Uses
-  
-  
Medical Uses
-  
-  
Other Uses
Research Purposes  
Research Purposes  
Biological Properties
  
  
Toxicity
-  
-  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
-  
-  
Boiling Point
0.00 °C  
99+
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
-  
Luster
Unknown Luster  
Unknown Luster  
Hardness
  
  
Mohs Hardness
7.00  
3
4.00  
11
Brinell Hardness
270.00 MPa  
99+
240.00 MPa  
99+
Vickers Hardness
2,700.00 MPa  
4
3,570.00 MPa  
2
Speed of Sound
2,680.00 m/s  
99+
3,570.00 m/s  
30
Optical Properties
  
  
Refractive Index
1.50  
36
1.90  
18
Reflectivity
59.00 %  
24
45.00 %  
32
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Bh  
Cn  
Isotopes
  
  
Known Isotopes
5  
32
1  
34
Electronegativity
  
  
Pauling Electronegativity
2.00  
8
1.90  
12
Sanderson Electronegativity
1.30  
25
1.30  
25
Allred Rochow Electronegativity
1.30  
25
1.90  
1
Mulliken-Jaffe Electronegativity
1.30  
33
1.90  
13
Allen Electronegativity
2.00  
6
1.90  
8
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.00  
99+
Ionization Energies
  
  
1st Energy Level
742.90 kJ/mol  
23
1,154.90 kJ/mol  
2
2nd Energy Level
1,688.50 kJ/mol  
31
2,170.00 kJ/mol  
9
3rd Energy Level
2,566.50 kJ/mol  
99+
4,245.40 kJ/mol  
9
4th Energy Level
3,598.90 kJ/mol  
99+
5,499.70 kJ/mol  
23
5th Energy Level
4,727.80 kJ/mol  
99+
3,570.00 kJ/mol  
99+
6th Energy Level
5,991.70 kJ/mol  
99+
7,030.00 kJ/mol  
99+
7th Energy level
7,226.80 kJ/mol  
34
3,570.00 kJ/mol  
99+
8th Energy Level
7,100.00 kJ/mol  
33
4,480.00 kJ/mol  
99+
9th Energy Level
5,800.00 kJ/mol  
99+
5,850.00 kJ/mol  
99+
10th Energy Level
7,100.00 kJ/mol  
35
4,480.00 kJ/mol  
99+
11th Energy Level
8,200.00 kJ/mol  
25
3,570.00 kJ/mol  
99+
12th Energy Level
82,700.00 kJ/mol  
4
35,700.00 kJ/mol  
26
13th Energy Level
7,100.00 kJ/mol  
29
4,480.00 kJ/mol  
99+
14th Energy Level
8,200.00 kJ/mol  
17
1,157.00 kJ/mol  
99+
15th Energy Level
82,000.00 kJ/mol  
14
35,700.00 kJ/mol  
99+
16th Energy Level
71,100.00 kJ/mol  
20
35,700.00 kJ/mol  
99+
17th Energy Level
820.00 kJ/mol  
31
1,157.00 kJ/mol  
16
18th Energy Level
8,200.00 kJ/mol  
20
3,570.00 kJ/mol  
99+
19th Energy Level
820.80 kJ/mol  
28
1,157.60 kJ/mol  
14
20th Energy Level
820.00 kJ/mol  
21
0.00 kJ/mol  
99+
21st Energy Level
8,200.00 kJ/mol  
11
1,157.00 kJ/mol  
28
22nd Energy Level
820.00 kJ/mol  
16
357.00 kJ/mol  
99+
23rd Energy Level
8,200.00 kJ/mol  
8
357.60 kJ/mol  
99+
24th Energy Level
820.00 kJ/mol  
12
357.60 kJ/mol  
99+
25th Energy Level
820.00 kJ/mol  
10
0.00 kJ/mol  
99+
26th Energy Level
820.00 kJ/mol  
10
357.60 kJ/mol  
99+
27th Energy Level
820.00 kJ/mol  
9
0.00 kJ/mol  
99+
28th Energy Level
820.00 kJ/mol  
15
1,157.00 kJ/mol  
2
29th Energy Level
820.00 kJ/mol  
14
1,157.00 kJ/mol  
3
30th Energy Level
820.00 kJ/mol  
10
357.60 kJ/mol  
99+
Electrochemical Equivalent
3.00 g/amp-hr  
21
3.00 g/amp-hr  
21
Electron Work Function
4.90 eV  
12
4.90 eV  
12
Other Chemical Properties
Ionization, Radioactive Isotopes  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
107  
11
112  
6
Electron Configuration
[Rn] 5f14 6d5 7s2  
[Rn] 5f14 6d10 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
107  
11
112  
6
Number of Neutrons
155  
9
285  
1
Number of Electrons
107  
11
112  
6
Radius of an Atom
  
  
Atomic Radius
128.00 pm  
99+
147.00 pm  
36
Covalent Radius
141.00 pm  
99+
122.00 pm  
99+
Van der Waals Radius
0.00 pm  
99+
0.00 pm  
99+
Atomic Weight
270.00 amu  
8
285.00 amu  
5
Atomic Volume
23.70 cm3/mol  
14
17.80 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Seaborgium
  
Roentgenium
  
Next Element
Hassium
  
Nihonium
  
Valence Electron Potential
27.20 (-eV)  
99+
0.00 (-eV)  
99+
Lattice Constant
-  
-  
Lattice Angles
-  
-  
Lattice C/A Ratio
1.57  
99+
1.58  
36
Mechanical
Density
  
  
Density At Room Temperature
37.10 g/cm3  
3
23.70 g/cm3  
7
Density When Liquid (at m.p.)
37.10 g/cm3  
3
23.70 g/cm3  
8
Tensile Strength
152.00 MPa  
24
0.10 MPa  
99+
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)  
37
0.00 (Pa)  
37
Elasticity properties
  
  
Shear Modulus
28.00 GPa  
32
31.00 GPa  
25
Bulk Modulus
37.00 GPa  
99+
35.00 GPa  
99+
Young's Modulus
0.00 GPa  
99+
0.00 GPa  
99+
Poisson Ratio
0.35  
9
0.35  
9
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
37.00  
5
23.70  
9
Magnetic Ordering
-  
-  
Permeability
0.00 H/m  
11
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
-  
Resistivity
6.50 nΩ·m  
99+
4.90 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.00 106/cm Ω  
99+
Electron Affinity
-  
-  
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.10 J/(kg K)  
99+
Molar Heat Capacity
37.10 J/mol·K  
2
13.10 J/mol·K  
99+
Thermal Conductivity
37.00 W/m·K  
36
13.00 W/m·K  
99+
Critical Temperature
1,323.00 K  
99+
1,323.00 K  
99+
Thermal Expansion
14.30 µm/(m·K)  
28
13.80 µm/(m·K)  
31
Enthalpy
  
  
Enthalpy of Vaporization
270.50 kJ/mol  
99+
357.20 kJ/mol  
31
Enthalpy of Fusion
-  
-  
Enthalpy of Atomization
-  
-  
Standard Molar Entropy
57.00 J/mol.K  
30
55.00 J/mol.K  
34
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