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Gold vs Lutetium

Gold
Lutetium
Lutetium vs Gold


Periodic Table
Symbol
Au  
Lu  
Group Number
11  
7
3  
15
Period Number
6  
6  
Block
d block  
f block  
Element Family
Transition Metal  
Lanthanide  
CAS Number
7440575  
31
7439943  
99+
Space Group Name
Fm_ 3m  
P63/mmc  
Space Group Number
225.00  
3
194.00  
7
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.
  
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
  
Sources
Earth's crust, Mining, Ores of metals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
-  
Georges Urbain and Carl Auer von Welsbach  
Discovery
Before 6000 BCE  
In 1906  
Abundance
  
  
Abundance In Universe
0.00 %  
27
0.00 %  
31
Abundance In Sun
0.00 %  
26
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
0.00 %  
99+
Abundance In Humans
0.00 %  
21
0.00 %  
24
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.
  
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  
Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
-  
Medical Uses
Dentistry, Pharmaceutical Industry  
-  
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys  
Biological Properties
  
  
Toxicity
Non Toxic  
Low Toxic  
Present in Human Body
Yes  
No  
In Blood
0.00 Blood/mg dm-3  
38
0.00 Blood/mg dm-3  
37
In Bone
0.02 p.p.m.  
35
0.00 p.p.m.  
99+
Physical
Melting Point
1,064.43 °C  
99+
1,652.00 °C  
19
Boiling Point
2,807.00 °C  
37
3,402.00 °C  
20
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gold  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
2.50  
15
4.50  
10
Brinell Hardness
194.00 MPa  
99+
893.00 MPa  
11
Vickers Hardness
216.00 MPa  
99+
1,160.00 MPa  
14
Speed of Sound
2,030.00 m/s  
99+
5,200.00 m/s  
10
Optical Properties
  
  
Refractive Index
0.47  
99+
1.90  
18
Reflectivity
95.00 %  
2
60.00 %  
23
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Au  
Lu  
Isotopes
  
  
Known Isotopes
36  
3
35  
4
Electronegativity
  
  
Pauling Electronegativity
2.54  
2
1.27  
35
Sanderson Electronegativity
1.50  
18
1.27  
27
Allred Rochow Electronegativity
1.42  
19
1.14  
29
Mulliken-Jaffe Electronegativity
1.87  
15
1.27  
34
Allen Electronegativity
1.92  
7
1.27  
99+
Electropositivity
  
  
Pauling Electropositivity
1.46  
99+
2.73  
20
Ionization Energies
  
  
1st Energy Level
890.10 kJ/mol  
8
523.50 kJ/mol  
99+
2nd Energy Level
1,980.00 kJ/mol  
12
1,340.00 kJ/mol  
99+
3rd Energy Level
2,856.00 kJ/mol  
33
2,022.30 kJ/mol  
99+
4th Energy Level
890.10 kJ/mol  
99+
4,370.00 kJ/mol  
38
5th Energy Level
8,901.00 kJ/mol  
6
6,445.00 kJ/mol  
34
6th Energy Level
8,901.00 kJ/mol  
24
5,230.00 kJ/mol  
99+
7th Energy level
8,901.00 kJ/mol  
21
5,230.00 kJ/mol  
99+
8th Energy Level
8,900.00 kJ/mol  
20
5,230.00 kJ/mol  
99+
9th Energy Level
8,901.00 kJ/mol  
20
5,230.00 kJ/mol  
99+
10th Energy Level
8,901.00 kJ/mol  
21
5,230.00 kJ/mol  
99+
11th Energy Level
8,901.00 kJ/mol  
19
5,235.00 kJ/mol  
99+
12th Energy Level
8,900.00 kJ/mol  
39
5,230.00 kJ/mol  
99+
13th Energy Level
8,900.00 kJ/mol  
14
5,230.00 kJ/mol  
99+
14th Energy Level
890.10 kJ/mol  
99+
5,230.00 kJ/mol  
99+
15th Energy Level
89,000.00 kJ/mol  
7
52,300.00 kJ/mol  
99+
16th Energy Level
890.10 kJ/mol  
99+
52,300.00 kJ/mol  
99+
17th Energy Level
890.10 kJ/mol  
25
523.50 kJ/mol  
99+
18th Energy Level
8,901.00 kJ/mol  
14
5,230.00 kJ/mol  
99+
19th Energy Level
890.10 kJ/mol  
23
523.50 kJ/mol  
99+
20th Energy Level
890.00 kJ/mol  
13
523.00 kJ/mol  
99+
21st Energy Level
890.10 kJ/mol  
35
523.50 kJ/mol  
99+
22nd Energy Level
890.00 kJ/mol  
11
523.00 kJ/mol  
99+
23rd Energy Level
890.10 kJ/mol  
38
5,230.00 kJ/mol  
28
24th Energy Level
890.10 kJ/mol  
6
523.50 kJ/mol  
99+
25th Energy Level
890.00 kJ/mol  
5
523.00 kJ/mol  
99+
26th Energy Level
890.10 kJ/mol  
5
523.50 kJ/mol  
99+
27th Energy Level
890.10 kJ/mol  
4
523.50 kJ/mol  
99+
28th Energy Level
890.10 kJ/mol  
7
523.50 kJ/mol  
99+
29th Energy Level
890.10 kJ/mol  
8
523.50 kJ/mol  
99+
30th Energy Level
890.10 kJ/mol  
5
523.00 kJ/mol  
99+
Electrochemical Equivalent
2.45 g/amp-hr  
25
2.18 g/amp-hr  
27
Electron Work Function
5.10 eV  
8
3.30 eV  
99+
Other Chemical Properties
Chemical Stability, Ionization, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
79  
37
71  
99+
Electron Configuration
[Xe] 4f14 5d10 6s1  
[Xe] 6s2 4f14 5d1  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Gold.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
79  
37
71  
99+
Number of Neutrons
118  
24
104  
31
Number of Electrons
79  
37
71  
99+
Radius of an Atom
  
  
Atomic Radius
151.00 pm  
34
174.00 pm  
22
Covalent Radius
144.00 pm  
99+
187.00 pm  
20
Van der Waals Radius
166.00 pm  
99+
221.00 pm  
27
Atomic Weight
196.97 amu  
33
174.97 amu  
40
Atomic Volume
10.20 cm3/mol  
99+
17.78 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Platinum
  
Ytterbium
  
Next Element
Mercury
  
Hafnium
  
Valence Electron Potential
43.40 (-eV)  
99+
50.90 (-eV)  
27
Lattice Constant
407.82 pm  
24
350.31 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.61  
18
1.59  
32
Mechanical
Density
  
  
Density At Room Temperature
19.30 g/cm3  
15
9.84 g/cm3  
99+
Density When Liquid (at m.p.)
17.31 g/cm3  
16
9.30 g/cm3  
99+
Tensile Strength
120.00 MPa  
27
230.00 MPa  
18
Viscosity
0.00  
23
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
25
0.00 (Pa)  
35
Vapor Pressure at 2000 K
67.00 (Pa)  
4
3.18 (Pa)  
11
Elasticity properties
  
  
Shear Modulus
27.00 GPa  
34
27.20 GPa  
33
Bulk Modulus
180.00 GPa  
9
47.60 GPa  
25
Young's Modulus
79.00 GPa  
26
68.60 GPa  
32
Poisson Ratio
0.40  
4
0.26  
21
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
19.32  
17
9.84  
99+
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Permeability
0.00 H/m  
10
0.00 H/m  
9
Susceptibility
0.00  
22
0.00  
14
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
2.20 nΩ·m  
99+
582.00 nΩ·m  
9
Electrical Conductivity
0.45 106/cm Ω  
3
0.02 106/cm Ω  
99+
Electron Affinity
222.80 kJ/mol  
1
50.00 kJ/mol  
26
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.15 J/(kg K)  
37
Molar Heat Capacity
25.42 J/mol·K  
99+
26.86 J/mol·K  
31
Thermal Conductivity
318.00 W/m·K  
3
16.40 W/m·K  
99+
Critical Temperature
1,337.00 K  
99+
1,925.00 K  
23
Thermal Expansion
14.20 µm/(m·K)  
29
9.90 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
324.40 kJ/mol  
99+
355.90 kJ/mol  
32
Enthalpy of Fusion
12.55 kJ/mol  
33
18.70 kJ/mol  
13
Enthalpy of Atomization
364.00 kJ/mol  
34
398.00 kJ/mol  
26
Standard Molar Entropy
47.40 J/mol.K  
99+
51.00 J/mol.K  
99+
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