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Gold vs Nobelium


Nobelium vs Gold


Periodic Table

Symbol
Au   
No   

Group Number
11   
7
Not Available   

Period Number
6   
7   

Block
d block   
f block   

Element Family
Transition Metal   
Actinide   

CAS Number
7440575   
31
10028145   
16

Space Group Name
Fm_ 3m   
Not Available   

Space Group Number
225.00   
2
Not Available   

Facts

Interesting Facts
  • 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.
  
  • The most stable isotope of Nobelium metal is No-259.
  • No-259 has a half-life of fifty-eight minutes.
  

Sources
Earth's crust, Mining, Ores of metals   
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining   

History
  
  

Who Discovered
Unknown   
Joint Institute for Nuclear Research   

Discovery
Before 6000 BCE   
In 1966   

Abundance
  
  

Abundance In Universe
6 * 10-8 %   
26
Not Available   

Abundance In Sun
~0.0000001 %   
26
~-9999 %   

Abundance In Meteorites
0.00 %   
99+
Not Available   

Abundance In Earth's Crust
0.00 %   
99+
Not Available   

Abundance In Oceans
0.00 %   
21
Not Available   

Abundance In Humans
0.00 %   
18
Not Available   

Uses

Uses & Benefits
  • 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.
  
  • Currently known uses of Nobelium metal are limited to research purpose only.
  

Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry   
NA   

Medical Uses
Dentistry, Pharmaceutical Industry   
NA   

Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues   
Research Purposes   

Biological Properties
  
  

Toxicity
Non Toxic   
Unknown   

Present in Human Body
Yes   
No   

In Blood
0.00 Blood/mg dm-3   
35
0.00 Blood/mg dm-3   
37

In Bone
0.02 p.p.m.   
30
0.00 p.p.m.   
36

Physical Properties

Melting Point
1,064.43 °C   
99+
827.00 °C   
99+

Boiling Point
2,807.00 °C   
36
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gold   
Unknown   

Luster
Metallic   
Unknown Luster   

Hardness
  
  

Mohs Hardness
2.50   
14
Not Available   

Brinell Hardness
194.00 MPa   
99+
Not Available   

Vickers Hardness
216.00 MPa   
31
Not Available   

Speed of Sound
2,030.00 m/s   
99+
Not Available   

Optical Properties
  
  

Reflectivity
95.00 %   
2
Not Available   

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Au   
No   

Isotopes
  
  

Known Isotopes
36   
3
13   
26

Electronegativity
  
  

Pauling Electronegativity
2.54   
1
1.30   
32

Allred Rochow Electronegativity
1.42   
18
1.20   
27

Mulliken-Jaffe Electronegativity
1.87   
7
Not Available   

Allen Electronegativity
1.92   
5
Not Available   

Electropositivity
  
  

Pauling Electropositivity
1.46   
99+
2.70   
22

Ionization Energies
  
  

1st Energy Level
890.10 kJ/mol   
8
642.00 kJ/mol   
99+

2nd Energy Level
1,980.00 kJ/mol   
12
1,254.00 kJ/mol   
99+

3rd Energy Level
Not Available   
2,643.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,956.00 kJ/mol   
39

Electrochemical Equivalent
2.45 g/amp-hr   
21
4.83 g/amp-hr   
4

Electron Work Function
5.10 eV   
4
Not Available   

Other Chemical Properties
Chemical Stability, Ionization, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   

Atomic Properties

Atomic Number
79   
37
102   
16

Electron Configuration
[Xe] 4f14 5d10 6s1   
[Rn] 5f14 7s2   

Crystal Structure
Face Centered Cubic (FCC)   
Not Known   

Crystal Lattice
FCC-Crystal-Structure-of-Gold.jpg#100   
Unknown-Crystal-Structure-of-Nobelium.jpg#100   

Atom
  
  

Number of Protons
79   
37
102   
16

Number of Neutrons
118   
23
157   
7

Number of Electrons
79   
37
102   
16

Radius of an Atom
  
  

Atomic Radius
151.00 pm   
32
Not Available   

Covalent Radius
144.00 pm   
40
Not Available   

Van der Waals Radius
166.00 pm   
39
246.00 pm   
8

Atomic Weight
196.97 amu   
33
259.00 amu   
13

Atomic Volume
10.20 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Platinum
  

Next Element
Mercury
  
Lawrencium
  

Valence Electron Potential
43.40 (-eV)   
99+
26.00 (-eV)   
99+

Lattice Constant
407.82 pm   
21
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
1.61   
4
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
19.30 g/cm3   
15
Not Available   

Density When Liquid (at m.p.)
17.31 g/cm3   
6
Not Available   

Tensile Strength
120.00 MPa   
15
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
23
Not Available   

Vapor Pressure at 2000 K
67.00 (Pa)   
4
Not Available   

Elasticity properties
  
  

Shear Modulus
27.00 GPa   
27
Not Available   

Bulk Modulus
180.00 GPa   
9
Not Available   

Young's Modulus
79.00 GPa   
24
Not Available   

Poisson Ratio
0.40   
4
Not Available   

Other Mechanical Properties
Ductile, Malleable   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
19.32   
8
Not Available   

Magnetic Ordering
Diamagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
2.20 nΩ·m   
99+
Not Available   

Electrical Conductivity
0.45 106/cm Ω   
3
Not Available   

Electron Affinity
222.80 kJ/mol   
1
Not Available   

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
Not Available   

Molar Heat Capacity
25.42 J/mol·K   
40
Not Available   

Thermal Conductivity
318.00 W/m·K   
3
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
14.20 µm/(m·K)   
26
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
324.40 kJ/mol   
27
Not Available   

Enthalpy of Fusion
12.55 kJ/mol   
27
Not Available   

Enthalpy of Atomization
364.00 kJ/mol   
25
Not Available   

Standard Molar Entropy
47.40 J/mol.K   
32
Not Available   

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