Home
 Compare Metals

Bohrium vs Flerovium

Bohrium
Flerovium
Flerovium vs Bohrium


Periodic Table
Symbol
Bh  
Fl  
Group Number
7  
11
14  
4
Period Number
7  
7  
Block
d block  
p block  
Element Family
Transition Metal  
Post-​Transition  
CAS Number
54037148  
12
54085164  
5
Space Group Name
-  
-  
Space Group Number
276.00  
1
198.00  
6
Facts
Interesting Facts
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
Flerovium is named after the Flerov Laboratory of Nuclear Reactions.  
Sources
Found in Minerals, Mining, Synthetically Produced  
-  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory  
Discovery
In 1981  
In 1999  
Abundance
  
  
Abundance In Universe
0.00 %  
37
0.00 %  
40
Abundance In Sun
-  
-  
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
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 Flerovium metal are limited to research purpose only.
  
Industrial Uses
-  
-  
Medical Uses
-  
-  
Other Uses
Research Purposes  
Alloys, 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
-  
67.00 °C  
99+
Boiling Point
0.00 °C  
99+
147.00 °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+
350.00 MPa  
36
Vickers Hardness
2,700.00 MPa  
4
450.00 MPa  
38
Speed of Sound
2,680.00 m/s  
99+
3,200.00 m/s  
35
Optical Properties
  
  
Refractive Index
1.50  
36
1.30  
99+
Reflectivity
59.00 %  
24
68.00 %  
15
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Bh  
Fl  
Isotopes
  
  
Known Isotopes
5  
32
1  
34
Electronegativity
  
  
Pauling Electronegativity
2.00  
8
2.60  
1
Sanderson Electronegativity
1.30  
25
1.30  
25
Allred Rochow Electronegativity
1.30  
25
1.30  
25
Mulliken-Jaffe Electronegativity
1.30  
33
1.30  
33
Allen Electronegativity
2.00  
6
1.30  
40
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.00  
99+
Ionization Energies
  
  
1st Energy Level
742.90 kJ/mol  
23
823.90 kJ/mol  
13
2nd Energy Level
1,688.50 kJ/mol  
31
1,601.60 kJ/mol  
35
3rd Energy Level
2,566.50 kJ/mol  
99+
3,367.30 kJ/mol  
18
4th Energy Level
3,598.90 kJ/mol  
99+
4,399.70 kJ/mol  
37
5th Energy Level
4,727.80 kJ/mol  
99+
5,847.00 kJ/mol  
99+
6th Energy Level
5,991.70 kJ/mol  
99+
11,400.00 kJ/mol  
9
7th Energy level
7,226.80 kJ/mol  
34
5,400.00 kJ/mol  
99+
8th Energy Level
7,100.00 kJ/mol  
33
6,700.00 kJ/mol  
39
9th Energy Level
5,800.00 kJ/mol  
99+
5,840.00 kJ/mol  
99+
10th Energy Level
7,100.00 kJ/mol  
35
6,000.00 kJ/mol  
99+
11th Energy Level
8,200.00 kJ/mol  
25
6,000.00 kJ/mol  
99+
12th Energy Level
82,700.00 kJ/mol  
4
36,400.00 kJ/mol  
24
13th Energy Level
7,100.00 kJ/mol  
29
5,400.00 kJ/mol  
99+
14th Energy Level
8,200.00 kJ/mol  
17
1,145.00 kJ/mol  
99+
15th Energy Level
82,000.00 kJ/mol  
14
67,000.00 kJ/mol  
33
16th Energy Level
71,100.00 kJ/mol  
20
36,400.00 kJ/mol  
99+
17th Energy Level
820.00 kJ/mol  
31
1,144.00 kJ/mol  
17
18th Energy Level
8,200.00 kJ/mol  
20
3,400.00 kJ/mol  
99+
19th Energy Level
820.80 kJ/mol  
28
1,127.50 kJ/mol  
16
20th Energy Level
820.00 kJ/mol  
21
800.00 kJ/mol  
24
21st Energy Level
8,200.00 kJ/mol  
11
670.00 kJ/mol  
99+
22nd Energy Level
820.00 kJ/mol  
16
340.00 kJ/mol  
99+
23rd Energy Level
8,200.00 kJ/mol  
8
1,120.00 kJ/mol  
34
24th Energy Level
820.00 kJ/mol  
12
540.10 kJ/mol  
99+
25th Energy Level
820.00 kJ/mol  
10
0.00 kJ/mol  
99+
26th Energy Level
820.00 kJ/mol  
10
540.10 kJ/mol  
99+
27th Energy Level
820.00 kJ/mol  
9
540.00 kJ/mol  
99+
28th Energy Level
820.00 kJ/mol  
15
800.00 kJ/mol  
18
29th Energy Level
820.00 kJ/mol  
14
800.10 kJ/mol  
17
30th Energy Level
820.00 kJ/mol  
10
0.00 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
114  
4
Electron Configuration
[Rn] 5f14 6d5 7s2  
[Rn] 5f14 6d10 7s2 7p2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Not Known  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
Unknown-Crystal-Structure-of-Flerovium.jpg#100  
Atom
  
  
Number of Protons
107  
11
114  
4
Number of Neutrons
155  
9
184  
2
Number of Electrons
107  
11
114  
4
Radius of an Atom
  
  
Atomic Radius
128.00 pm  
99+
180.00 pm  
16
Covalent Radius
141.00 pm  
99+
171.00 pm  
26
Van der Waals Radius
0.00 pm  
99+
0.00 pm  
99+
Atomic Weight
270.00 amu  
8
289.00 amu  
3
Atomic Volume
23.70 cm3/mol  
14
14.00 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Seaborgium
  
Nihonium
  
Next Element
Hassium
  
Moscovium
  
Valence Electron Potential
27.20 (-eV)  
99+
0.00 (-eV)  
99+
Lattice Constant
-  
-  
Lattice Angles
-  
-  
Lattice C/A Ratio
1.57  
99+
1.60  
22
Mechanical
Density
  
  
Density At Room Temperature
37.10 g/cm3  
3
14.00 g/cm3  
24
Density When Liquid (at m.p.)
37.10 g/cm3  
3
14.00 g/cm3  
24
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)  
30
Elasticity properties
  
  
Shear Modulus
28.00 GPa  
32
35.00 GPa  
21
Bulk Modulus
37.00 GPa  
99+
15.00 GPa  
99+
Young's Modulus
0.00 GPa  
99+
0.00 GPa  
99+
Poisson Ratio
0.35  
9
0.30  
14
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
37.00  
5
14.00  
25
Magnetic Ordering
-  
-  
Permeability
0.00 H/m  
11
0.00 H/m  
15
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
-  
Resistivity
6.50 nΩ·m  
99+
5.40 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
27.00 J/mol·K  
29
Thermal Conductivity
37.00 W/m·K  
36
0.00 W/m·K  
99+
Critical Temperature
1,323.00 K  
99+
340.00 K  
99+
Thermal Expansion
14.30 µm/(m·K)  
28
7.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
270.50 kJ/mol  
99+
337.40 kJ/mol  
38
Enthalpy of Fusion
-  
14.50 kJ/mol  
26
Enthalpy of Atomization
-  
-  
Standard Molar Entropy
57.00 J/mol.K  
30
57.00 J/mol.K  
30
Periodic Table >>
<< All

Compare Transition Metals

Transition Metals

Transition Metals

» More Transition Metals

Compare Transition Metals

» More Compare Transition Metals
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!