Home
 Compare Metals

Gold vs Platinum

Gold
Platinum
Platinum vs Gold


Periodic Table
Symbol
Au  
Pt  
Group Number
11  
7
10  
8
Period Number
6  
6  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440575  
31
7440064  
99+
Space Group Name
Fm_ 3m  
Fm_ 3m  
Space Group Number
225.00  
3
225.00  
3
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.
  
  • Platinum is the rarest metal from the Precious metal categories..
  • Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
Earth's crust, Mining, Ores of metals  
Mining, Ores of metals, Ores of Minerals  
History
  
  
Who Discovered
-  
Antonio de Ulloa  
Discovery
Before 6000 BCE  
In 1735  
Abundance
  
  
Abundance In Universe
0.00 %  
27
0.00 %  
20
Abundance In Sun
0.00 %  
26
0.00 %  
19
Abundance In Meteorites
0.00 %  
99+
0.00 %  
25
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
0.00 %  
21
-  
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.
  
  • Platinum metal is mainly used in jewellery.
  • Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
Industrial Uses
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Chemical Industry  
Medical Uses
Dentistry, Pharmaceutical Industry  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Non Toxic  
Non 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+
1,772.00 °C  
16
Boiling Point
2,807.00 °C  
37
3,827.00 °C  
15
Appearance
  
  
Physical State
Solid  
Solid  
Color
Gold  
Silvery White  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
2.50  
15
3.50  
12
Brinell Hardness
194.00 MPa  
99+
300.00 MPa  
99+
Vickers Hardness
216.00 MPa  
99+
400.00 MPa  
99+
Speed of Sound
2,030.00 m/s  
99+
2,800.00 m/s  
99+
Optical Properties
  
  
Refractive Index
0.47  
99+
2.41  
6
Reflectivity
95.00 %  
2
73.00 %  
10
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Au  
Pt  
Isotopes
  
  
Known Isotopes
36  
3
35  
4
Electronegativity
  
  
Pauling Electronegativity
2.54  
2
2.28  
4
Sanderson Electronegativity
1.50  
18
2.28  
5
Allred Rochow Electronegativity
1.42  
19
1.44  
18
Mulliken-Jaffe Electronegativity
1.87  
15
2.20  
6
Allen Electronegativity
1.92  
7
1.72  
19
Electropositivity
  
  
Pauling Electropositivity
1.46  
99+
1.72  
99+
Ionization Energies
  
  
1st Energy Level
890.10 kJ/mol  
8
870.00 kJ/mol  
10
2nd Energy Level
1,980.00 kJ/mol  
12
1,791.00 kJ/mol  
22
3rd Energy Level
2,856.00 kJ/mol  
33
2,277.00 kJ/mol  
99+
4th Energy Level
890.10 kJ/mol  
99+
8,702.00 kJ/mol  
6
5th Energy Level
8,901.00 kJ/mol  
6
8,702.00 kJ/mol  
9
6th Energy Level
8,901.00 kJ/mol  
24
8,700.00 kJ/mol  
27
7th Energy level
8,901.00 kJ/mol  
21
8,700.00 kJ/mol  
23
8th Energy Level
8,900.00 kJ/mol  
20
8,700.00 kJ/mol  
23
9th Energy Level
8,901.00 kJ/mol  
20
5,660.00 kJ/mol  
99+
10th Energy Level
8,901.00 kJ/mol  
21
8,700.00 kJ/mol  
24
11th Energy Level
8,901.00 kJ/mol  
19
8,700.00 kJ/mol  
21
12th Energy Level
8,900.00 kJ/mol  
39
8,700.00 kJ/mol  
99+
13th Energy Level
8,900.00 kJ/mol  
14
8,700.00 kJ/mol  
16
14th Energy Level
890.10 kJ/mol  
99+
870.00 kJ/mol  
99+
15th Energy Level
89,000.00 kJ/mol  
7
87,000.00 kJ/mol  
9
16th Energy Level
890.10 kJ/mol  
99+
870.00 kJ/mol  
99+
17th Energy Level
890.10 kJ/mol  
25
870.00 kJ/mol  
27
18th Energy Level
8,901.00 kJ/mol  
14
8,700.00 kJ/mol  
16
19th Energy Level
890.10 kJ/mol  
23
870.00 kJ/mol  
25
20th Energy Level
890.00 kJ/mol  
13
870.00 kJ/mol  
15
21st Energy Level
890.10 kJ/mol  
35
870.00 kJ/mol  
38
22nd Energy Level
890.00 kJ/mol  
11
870.00 kJ/mol  
13
23rd Energy Level
890.10 kJ/mol  
38
870.10 kJ/mol  
39
24th Energy Level
890.10 kJ/mol  
6
870.00 kJ/mol  
9
25th Energy Level
890.00 kJ/mol  
5
870.00 kJ/mol  
7
26th Energy Level
890.10 kJ/mol  
5
870.00 kJ/mol  
7
27th Energy Level
890.10 kJ/mol  
4
870.10 kJ/mol  
6
28th Energy Level
890.10 kJ/mol  
7
870.10 kJ/mol  
9
29th Energy Level
890.10 kJ/mol  
8
870.00 kJ/mol  
10
30th Energy Level
890.10 kJ/mol  
5
870.00 kJ/mol  
7
Electrochemical Equivalent
2.45 g/amp-hr  
25
1.82 g/amp-hr  
39
Electron Work Function
5.10 eV  
8
5.65 eV  
4
Other Chemical Properties
Chemical Stability, Ionization, Solubility  
Chemical Stability, Anti Corrosion, Ionization  
Atomic
Atomic Number
79  
37
78  
38
Electron Configuration
[Xe] 4f14 5d10 6s1  
[Xe] 4f14 5d9 6s1  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Gold.jpg#100  
FCC-Crystal-Structure-of-Platinum.jpg#100  
Atom
  
  
Number of Protons
79  
37
78  
38
Number of Neutrons
118  
24
117  
25
Number of Electrons
79  
37
78  
38
Radius of an Atom
  
  
Atomic Radius
151.00 pm  
34
139.00 pm  
99+
Covalent Radius
144.00 pm  
99+
136.00 pm  
99+
Van der Waals Radius
166.00 pm  
99+
175.00 pm  
99+
Atomic Weight
196.97 amu  
33
47.87 amu  
99+
Atomic Volume
10.20 cm3/mol  
99+
9.09 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Platinum
  
Iridium
  
Next Element
Mercury
  
Gold
  
Valence Electron Potential
43.40 (-eV)  
99+
392.42 (-eV)  
1
Lattice Constant
407.82 pm  
24
392.42 pm  
27
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.61  
18
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
19.30 g/cm3  
15
21.45 g/cm3  
11
Density When Liquid (at m.p.)
17.31 g/cm3  
16
19.77 g/cm3  
12
Tensile Strength
120.00 MPa  
27
125.00 MPa  
26
Viscosity
0.00  
23
0.00  
16
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
25
0.00 (Pa)  
16
Vapor Pressure at 2000 K
67.00 (Pa)  
4
0.07 (Pa)  
18
Elasticity properties
  
  
Shear Modulus
27.00 GPa  
34
61.00 GPa  
14
Bulk Modulus
180.00 GPa  
9
230.00 GPa  
6
Young's Modulus
79.00 GPa  
26
168.00 GPa  
15
Poisson Ratio
0.40  
4
0.38  
6
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
19.32  
17
21.45  
13
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Permeability
0.00 H/m  
10
0.00 H/m  
14
Susceptibility
0.00  
22
0.00  
20
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
2.20 nΩ·m  
99+
105.00 nΩ·m  
30
Electrical Conductivity
0.45 106/cm Ω  
3
0.10 106/cm Ω  
26
Electron Affinity
222.80 kJ/mol  
1
205.30 kJ/mol  
2
Thermal
Specific Heat
0.13 J/(kg K)  
40
0.13 J/(kg K)  
40
Molar Heat Capacity
25.42 J/mol·K  
99+
25.86 J/mol·K  
99+
Thermal Conductivity
318.00 W/m·K  
3
71.60 W/m·K  
24
Critical Temperature
1,337.00 K  
99+
2,041.00 K  
19
Thermal Expansion
14.20 µm/(m·K)  
29
8.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
324.40 kJ/mol  
99+
510.50 kJ/mol  
15
Enthalpy of Fusion
12.55 kJ/mol  
33
19.70 kJ/mol  
12
Enthalpy of Atomization
364.00 kJ/mol  
34
565.00 kJ/mol  
15
Standard Molar Entropy
47.40 J/mol.K  
99+
41.60 J/mol.K  
99+
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!