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Nihonium vs Bohrium

Nihonium
Bohrium
Bohrium vs Nihonium


Periodic Table
Symbol
Nh  
Bh  
Group Number
13  
5
7  
11
Period Number
7  
7  
Block
p block  
d block  
Element Family
Probably Post-​Transition  
Transition Metal  
CAS Number
54084707  
6
54037148  
12
Space Group Name
-  
-  
Space Group Number
194.00  
7
276.00  
1
Facts
Interesting Facts
Nihonium is a synthetic chemical element and is highly radioactive.  
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Sources
Synthetically Produced  
Found in Minerals, Mining, Synthetically Produced  
History
  
  
Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory  
Gesellschaft für Schwerionenforschung  
Discovery
In 2003  
In 1981  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
37
Abundance In Sun
-  
-  
Abundance In Meteorites
-  
0.00 %  
99+
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
-  
-  
Uses
Uses & Benefits
  • Currently known uses of Ununtrium metal are limited to research purpose only.
  
  • Currently known uses of Bohrium 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  
29
0.00 Blood/mg dm-3  
40
In Bone
0.20 p.p.m.  
27
0.00 p.p.m.  
99+
Physical
Melting Point
430.00 °C  
99+
-  
Boiling Point
1,130.00 °C  
99+
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
-  
Luster
Unknown Luster  
Unknown Luster  
Hardness
  
  
Mohs Hardness
-  
7.00  
3
Brinell Hardness
600.00 MPa  
24
270.00 MPa  
99+
Vickers Hardness
350.00 MPa  
99+
2,700.00 MPa  
4
Speed of Sound
3,600.00 m/s  
29
2,680.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
1.50  
36
Reflectivity
60.00 %  
23
59.00 %  
24
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Nh  
Bh  
Isotopes
  
  
Known Isotopes
7  
31
5  
32
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
2.00  
8
Sanderson Electronegativity
1.90  
13
1.30  
25
Allred Rochow Electronegativity
1.30  
25
1.30  
25
Mulliken-Jaffe Electronegativity
1.00  
99+
1.30  
33
Allen Electronegativity
0.70  
99+
2.00  
6
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
2.00  
99+
Ionization Energies
  
  
1st Energy Level
704.90 kJ/mol  
34
742.90 kJ/mol  
23
2nd Energy Level
2,238.50 kJ/mol  
7
1,688.50 kJ/mol  
31
3rd Energy Level
3,023.30 kJ/mol  
26
2,566.50 kJ/mol  
99+
4th Energy Level
4,351.50 kJ/mol  
39
3,598.90 kJ/mol  
99+
5th Energy Level
5,692.60 kJ/mol  
99+
4,727.80 kJ/mol  
99+
6th Energy Level
7,000.00 kJ/mol  
99+
5,991.70 kJ/mol  
99+
7th Energy level
7,040.00 kJ/mol  
40
7,226.80 kJ/mol  
34
8th Energy Level
7,040.00 kJ/mol  
36
7,100.00 kJ/mol  
33
9th Energy Level
7,040.00 kJ/mol  
33
5,800.00 kJ/mol  
99+
10th Energy Level
7,040.00 kJ/mol  
37
7,100.00 kJ/mol  
35
11th Energy Level
7,040.00 kJ/mol  
35
8,200.00 kJ/mol  
25
12th Energy Level
70,000.00 kJ/mol  
5
82,700.00 kJ/mol  
4
13th Energy Level
7,000.00 kJ/mol  
34
7,100.00 kJ/mol  
29
14th Energy Level
7,000.00 kJ/mol  
24
8,200.00 kJ/mol  
17
15th Energy Level
70,000.00 kJ/mol  
30
82,000.00 kJ/mol  
14
16th Energy Level
70,000.00 kJ/mol  
25
71,100.00 kJ/mol  
20
17th Energy Level
540.00 kJ/mol  
99+
820.00 kJ/mol  
31
18th Energy Level
3,200.00 kJ/mol  
99+
8,200.00 kJ/mol  
20
19th Energy Level
540.20 kJ/mol  
99+
820.80 kJ/mol  
28
20th Energy Level
700.00 kJ/mol  
36
820.00 kJ/mol  
21
21st Energy Level
1,130.00 kJ/mol  
29
8,200.00 kJ/mol  
11
22nd Energy Level
558.00 kJ/mol  
99+
820.00 kJ/mol  
16
23rd Energy Level
7,000.00 kJ/mol  
11
8,200.00 kJ/mol  
8
24th Energy Level
700.00 kJ/mol  
29
820.00 kJ/mol  
12
25th Energy Level
0.00 kJ/mol  
99+
820.00 kJ/mol  
10
26th Energy Level
586.20 kJ/mol  
99+
820.00 kJ/mol  
10
27th Energy Level
704.90 kJ/mol  
28
820.00 kJ/mol  
9
28th Energy Level
704.90 kJ/mol  
33
820.00 kJ/mol  
15
29th Energy Level
704.90 kJ/mol  
34
820.00 kJ/mol  
14
30th Energy Level
704.00 kJ/mol  
28
820.00 kJ/mol  
10
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
Chemical Stability, Ionization  
Ionization, Radioactive Isotopes  
Atomic
Atomic Number
113  
5
107  
11
Electron Configuration
[Rn] 5f14 6d10 7s2 7p1  
[Rn] 5f14 6d5 7s2  
Crystal Structure
Not Known  
Hexagonal Close Packed (HCP)  
Crystal Lattice
Unknown-Crystal-Structure-of-Ununtrium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
113  
5
107  
11
Number of Neutrons
150  
12
155  
9
Number of Electrons
113  
5
107  
11
Radius of an Atom
  
  
Atomic Radius
170.00 pm  
24
128.00 pm  
99+
Covalent Radius
170.00 pm  
27
141.00 pm  
99+
Van der Waals Radius
320.00 pm  
3
0.00 pm  
99+
Atomic Weight
286.00 amu  
4
270.00 amu  
8
Atomic Volume
21.10 cm3/mol  
24
23.70 cm3/mol  
14
Adjacent Atomic Numbers
  
  
Previous Element
Copernicium
  
Seaborgium
  
Next Element
Flerovium
  
Hassium
  
Valence Electron Potential
6.20 (-eV)  
99+
27.20 (-eV)  
99+
Lattice Constant
0.00 pm  
99+
-  
Lattice Angles
-  
-  
Lattice C/A Ratio
1.58  
35
1.57  
99+
Mechanical
Density
  
  
Density At Room Temperature
16.00 g/cm3  
19
37.10 g/cm3  
3
Density When Liquid (at m.p.)
16.00 g/cm3  
19
37.10 g/cm3  
3
Tensile Strength
80.00 MPa  
29
152.00 MPa  
24
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
40.00 GPa  
19
28.00 GPa  
32
Bulk Modulus
0.00 GPa  
99+
37.00 GPa  
99+
Young's Modulus
12.20 GPa  
99+
0.00 GPa  
99+
Poisson Ratio
0.30  
14
0.35  
9
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
16.00  
21
37.00  
5
Magnetic Ordering
-  
-  
Permeability
0.00 H/m  
5
0.00 H/m  
11
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
-  
Resistivity
0.32 nΩ·m  
99+
6.50 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.00 106/cm Ω  
99+
Electron Affinity
0.00 kJ/mol  
99+
-  
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.10 J/(kg K)  
99+
Molar Heat Capacity
27.00 J/mol·K  
29
37.10 J/mol·K  
2
Thermal Conductivity
1.70 W/m·K  
99+
37.00 W/m·K  
36
Critical Temperature
700.00 K  
99+
1,323.00 K  
99+
Thermal Expansion
6.20 µm/(m·K)  
99+
14.30 µm/(m·K)  
28
Enthalpy
  
  
Enthalpy of Vaporization
410.80 kJ/mol  
23
270.50 kJ/mol  
99+
Enthalpy of Fusion
-  
-  
Enthalpy of Atomization
320.70 kJ/mol  
99+
-  
Standard Molar Entropy
65.00 J/mol.K  
17
57.00 J/mol.K  
30
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