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Bohrium vs Gold

Bohrium
Gold
Gold vs Bohrium


Periodic Table
Symbol
Bh  
Au  
Group Number
7  
11
11  
7
Period Number
7  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
54037148  
12
7440575  
31
Space Group Name
-  
Fm_ 3m  
Space Group Number
276.00  
1
225.00  
3
Facts
Interesting Facts
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  
  • It is found in copper ores and from the crust of the earth.
  • It is the most malleable and ductile metal.
  • Gold alloys are used in Dentistry as fillings, crowning, clips, etc. It is also used as an artificial limb joints.
  
Sources
Found in Minerals, Mining, Synthetically Produced  
Earth's crust, Mining, Ores of metals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
-  
Discovery
In 1981  
Before 6000 BCE  
Abundance
  
  
Abundance In Universe
0.00 %  
37
0.00 %  
27
Abundance In Sun
-  
0.00 %  
26
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
0.00 %  
21
Abundance In Humans
-  
0.00 %  
21
Uses
Uses & Benefits
  • Currently known uses of Bohrium metal are limited to research purpose only.
  
  • Gold metal is mainly used for Jewelry, bullion, coinage, etc.
  • It is used in the art, decoration, ornaments, etc. It is also used for electroplating process.
  
Industrial Uses
-  
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry  
Other Uses
Research Purposes  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
-  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
38
In Bone
0.00 p.p.m.  
99+
0.02 p.p.m.  
35
Physical
Melting Point
-  
1,064.43 °C  
99+
Boiling Point
0.00 °C  
99+
2,807.00 °C  
37
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Gold  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
7.00  
3
2.50  
15
Brinell Hardness
270.00 MPa  
99+
194.00 MPa  
99+
Vickers Hardness
2,700.00 MPa  
4
216.00 MPa  
99+
Speed of Sound
2,680.00 m/s  
99+
2,030.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.50  
36
0.47  
99+
Reflectivity
59.00 %  
24
95.00 %  
2
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Bh  
Au  
Isotopes
  
  
Known Isotopes
5  
32
36  
3
Electronegativity
  
  
Pauling Electronegativity
2.00  
8
2.54  
2
Sanderson Electronegativity
1.30  
25
1.50  
18
Allred Rochow Electronegativity
1.30  
25
1.42  
19
Mulliken-Jaffe Electronegativity
1.30  
33
1.87  
15
Allen Electronegativity
2.00  
6
1.92  
7
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
1.46  
99+
Ionization Energies
  
  
1st Energy Level
742.90 kJ/mol  
23
890.10 kJ/mol  
8
2nd Energy Level
1,688.50 kJ/mol  
31
1,980.00 kJ/mol  
12
3rd Energy Level
2,566.50 kJ/mol  
99+
2,856.00 kJ/mol  
33
4th Energy Level
3,598.90 kJ/mol  
99+
890.10 kJ/mol  
99+
5th Energy Level
4,727.80 kJ/mol  
99+
8,901.00 kJ/mol  
6
6th Energy Level
5,991.70 kJ/mol  
99+
8,901.00 kJ/mol  
24
7th Energy level
7,226.80 kJ/mol  
34
8,901.00 kJ/mol  
21
8th Energy Level
7,100.00 kJ/mol  
33
8,900.00 kJ/mol  
20
9th Energy Level
5,800.00 kJ/mol  
99+
8,901.00 kJ/mol  
20
10th Energy Level
7,100.00 kJ/mol  
35
8,901.00 kJ/mol  
21
11th Energy Level
8,200.00 kJ/mol  
25
8,901.00 kJ/mol  
19
12th Energy Level
82,700.00 kJ/mol  
4
8,900.00 kJ/mol  
39
13th Energy Level
7,100.00 kJ/mol  
29
8,900.00 kJ/mol  
14
14th Energy Level
8,200.00 kJ/mol  
17
890.10 kJ/mol  
99+
15th Energy Level
82,000.00 kJ/mol  
14
89,000.00 kJ/mol  
7
16th Energy Level
71,100.00 kJ/mol  
20
890.10 kJ/mol  
99+
17th Energy Level
820.00 kJ/mol  
31
890.10 kJ/mol  
25
18th Energy Level
8,200.00 kJ/mol  
20
8,901.00 kJ/mol  
14
19th Energy Level
820.80 kJ/mol  
28
890.10 kJ/mol  
23
20th Energy Level
820.00 kJ/mol  
21
890.00 kJ/mol  
13
21st Energy Level
8,200.00 kJ/mol  
11
890.10 kJ/mol  
35
22nd Energy Level
820.00 kJ/mol  
16
890.00 kJ/mol  
11
23rd Energy Level
8,200.00 kJ/mol  
8
890.10 kJ/mol  
38
24th Energy Level
820.00 kJ/mol  
12
890.10 kJ/mol  
6
25th Energy Level
820.00 kJ/mol  
10
890.00 kJ/mol  
5
26th Energy Level
820.00 kJ/mol  
10
890.10 kJ/mol  
5
27th Energy Level
820.00 kJ/mol  
9
890.10 kJ/mol  
4
28th Energy Level
820.00 kJ/mol  
15
890.10 kJ/mol  
7
29th Energy Level
820.00 kJ/mol  
14
890.10 kJ/mol  
8
30th Energy Level
820.00 kJ/mol  
10
890.10 kJ/mol  
5
Electrochemical Equivalent
3.00 g/amp-hr  
21
2.45 g/amp-hr  
25
Electron Work Function
4.90 eV  
12
5.10 eV  
8
Other Chemical Properties
Ionization, Radioactive Isotopes  
Chemical Stability, Ionization, Solubility  
Atomic
Atomic Number
107  
11
79  
37
Electron Configuration
[Rn] 5f14 6d5 7s2  
[Xe] 4f14 5d10 6s1  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Gold.jpg#100  
Atom
  
  
Number of Protons
107  
11
79  
37
Number of Neutrons
155  
9
118  
24
Number of Electrons
107  
11
79  
37
Radius of an Atom
  
  
Atomic Radius
128.00 pm  
99+
151.00 pm  
34
Covalent Radius
141.00 pm  
99+
144.00 pm  
99+
Van der Waals Radius
0.00 pm  
99+
166.00 pm  
99+
Atomic Weight
270.00 amu  
8
196.97 amu  
33
Atomic Volume
23.70 cm3/mol  
14
10.20 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Seaborgium
  
Platinum
  
Next Element
Hassium
  
Mercury
  
Valence Electron Potential
27.20 (-eV)  
99+
43.40 (-eV)  
99+
Lattice Constant
-  
407.82 pm  
24
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.57  
99+
1.61  
18
Mechanical
Density
  
  
Density At Room Temperature
37.10 g/cm3  
3
19.30 g/cm3  
15
Density When Liquid (at m.p.)
37.10 g/cm3  
3
17.31 g/cm3  
16
Tensile Strength
152.00 MPa  
24
120.00 MPa  
27
Viscosity
0.00  
25
0.00  
23
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
25
Vapor Pressure at 2000 K
0.00 (Pa)  
37
67.00 (Pa)  
4
Elasticity properties
  
  
Shear Modulus
28.00 GPa  
32
27.00 GPa  
34
Bulk Modulus
37.00 GPa  
99+
180.00 GPa  
9
Young's Modulus
0.00 GPa  
99+
79.00 GPa  
26
Poisson Ratio
0.35  
9
0.40  
4
Other Mechanical Properties
-  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
37.00  
5
19.32  
17
Magnetic Ordering
-  
Diamagnetic  
Permeability
0.00 H/m  
11
0.00 H/m  
10
Susceptibility
0.00  
24
0.00  
22
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
6.50 nΩ·m  
99+
2.20 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.45 106/cm Ω  
3
Electron Affinity
-  
222.80 kJ/mol  
1
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
37.10 J/mol·K  
2
25.42 J/mol·K  
99+
Thermal Conductivity
37.00 W/m·K  
36
318.00 W/m·K  
3
Critical Temperature
1,323.00 K  
99+
1,337.00 K  
99+
Thermal Expansion
14.30 µm/(m·K)  
28
14.20 µm/(m·K)  
29
Enthalpy
  
  
Enthalpy of Vaporization
270.50 kJ/mol  
99+
324.40 kJ/mol  
99+
Enthalpy of Fusion
-  
12.55 kJ/mol  
33
Enthalpy of Atomization
-  
364.00 kJ/mol  
34
Standard Molar Entropy
57.00 J/mol.K  
30
47.40 J/mol.K  
99+
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