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Gold
Gold




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What is Gold?

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1 Periodic Table

1.1 Symbol

Au

1.2 Group Number

11
Rank: 7 (Overall)
Gadolinium
0 17

1.3 Period Number

6
Rank: 2 (Overall)
Lithium
2 7

1.4 Block

d block

1.5 Element Family

Transition Metal

1.6 CAS Number

7440575
Rank: 31 (Overall)
Aluminium
7429905 54386242

1.7 Space Group Name

Fm_ 3m

1.8 Space Group Number

225.00
Rank: 2 (Overall)
Plutonium
11 229

2 Facts

2.1 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.

2.2 Sources

Earth's crust, Mining, Ores of metals

2.3 History

2.3.1 Who Discovered

Unknown

2.3.2 Discovery

Before 6000 BCE

2.4 Abundance

2.4.1 Abundance In Universe

6 * 10-8 %
Rank: 26 (Overall)
Thallium
5E-09 0.11

2.4.2 Abundance In Sun

~0.0000001 %
Rank: 26 (Overall)
Beryllium
1E-08 0.1

2.4.3 Abundance In Meteorites

0.00 %
Rank: 52 (Overall)
Palladium
1.7E-07 22

2.4.4 Abundance In Earth's Crust

0.00 %
Rank: 50 (Overall)
Radium
9.9E-12 8.1

2.4.5 Abundance In Oceans

0.00 %
Rank: 21 (Overall)
Protactinium
2E-23 1.1

2.4.6 Abundance In Humans

0.00 %
Rank: 18 (Overall)
Radium
1E-13 1.4

3 Uses

3.1 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.

3.1.1 Industrial Uses

Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry

3.1.2 Medical Uses

Dentistry, Pharmaceutical Industry

3.1.3 Other Uses

Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues

3.2 Biological Properties

3.2.1 Toxicity

Non Toxic

3.2.2 Present in Human Body

60% - Transition Metals Metals have it !

3.2.3 In Blood

0.00 Blood/mg dm-3
Rank: 35 (Overall)
Plutonium
0 1970

3.2.4 In Bone

0.02 p.p.m.
Rank: 30 (Overall)
Plutonium
0 170000

4 Physical

4.1 Melting Point

1,064.43 °C
Rank: 42 (Overall)
Francium
27 3410

4.2 Boiling Point

2,807.00 °C
Rank: 36 (Overall)
Flerovium
147 5660

4.3 Appearance

4.3.1 Physical State

Solid

4.3.2 Color

Gold

4.3.3 Luster

Metallic

4.4 Hardness

4.4.1 Mohs Hardness

2.50
Rank: 14 (Overall)
Cesium
0.2 8.5

4.4.2 Brinell Hardness

194.00 MPa
Rank: 42 (Overall)
Cesium
0.14 3490

4.4.3 Vickers Hardness

216.00 MPa
Rank: 31 (Overall)
Palladium
121 3430

4.5 Speed of Sound

2,030.00 m/s
Rank: 44 (Overall)
Thallium
818 16200

4.6 Optical Properties

4.6.1 Refractive Index

Not Available
Rank: N/A (Overall)
Mercury
1.000933 1.7229

4.6.2 Reflectivity

95.00 %
Rank: 2 (Overall)
Molybdenum
58 97

4.7 Allotropes

6% - Transition Metals Metals have it !

4.7.1 α Allotropes

Not Available

4.7.2 β Allotropes

Not Available

4.7.3 γ Allotropes

Not Available

5 Chemical

5.1 Chemical Formula

Au

5.2 Isotopes

5.2.1 Known Isotopes

36
Rank: 3 (Overall)
Tennessine
0 38

5.3 Electronegativity

5.3.1 Pauling Electronegativity

2.54
Rank: 1 (Overall)
Francium
0.7 2.54

5.3.2 Sanderson Electronegativity

Not Available
Rank: N/A (Overall)
Cesium
0.22 2.56

5.3.3 Allred Rochow Electronegativity

1.42
Rank: 18 (Overall)
Cesium
0.86 1.82

5.3.4 Mulliken-Jaffe Electronegativity

1.87
Rank: 7 (Overall)
Cesium
0.62 2.48

5.3.5 Allen Electronegativity

1.92
Rank: 5 (Overall)
Cesium
0.659 2.7

5.4 Electropositivity

5.4.1 Pauling Electropositivity

1.46
Rank: 53 (Overall)
Palladium
1.46 3.3

5.5 Ionization Energies

5.5.1 1st Energy Level

890.10 kJ/mol
Rank: 8 (Overall)
Cesium
375.7 26130

5.5.2 2nd Energy Level

1,980.00 kJ/mol
Rank: 12 (Overall)
Ruthenium
710.2162 28750

5.5.3 3rd Energy Level

Not Available
Rank: N/A (Overall)
Osmium
1600 34230

5.5.4 4th Energy Level

Not Available
Rank: N/A (Overall)
Thorium
2780 37066

5.5.5 5th Energy Level

Not Available
Rank: N/A (Overall)
Dubnium
4305.2 97510

5.5.6 6th Energy Level

Not Available
Rank: N/A (Overall)
Seaborgium
5715.8 105800

5.5.7 7th Energy level

Not Available
Rank: N/A (Overall)
Bohrium
7226.8 114300

5.5.8 8th Energy Level

Not Available
Rank: N/A (Overall)
Hassium
8857.4 125300

5.5.9 9th Energy Level

Not Available
Rank: N/A (Overall)
Yttrium
14110 134700

5.5.10 10th Energy Level

Not Available
Rank: N/A (Overall)
Strontium
17100 144300

5.5.11 11th Energy Level

Not Available
Rank: N/A (Overall)
Yttrium
19900 169988

5.5.12 12th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
22219 189368

5.5.13 13th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
26930 76015

5.5.14 14th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
29196 86450

5.5.15 15th Energy Level

Not Available
Rank: N/A (Overall)
Manganese
41987 97510

5.5.16 16th Energy Level

Not Available
Rank: N/A (Overall)
Iron
47206 109480

5.5.17 17th Energy Level

Not Available
Rank: N/A (Overall)
Cobalt
52737 122200

5.5.18 18th Energy Level

Not Available
Rank: N/A (Overall)
Nickel
58570 134810

5.5.19 19th Energy Level

Not Available
Rank: N/A (Overall)
Copper
64702 148700

5.5.20 20th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
80400 171200

5.5.21 21st Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
87000 179100

5.5.22 22nd Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
93400 184900

5.5.23 23rd Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
98420 198800

5.5.24 24th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
104400 195200

5.5.25 25th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
121900 121900

5.5.26 26th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
127700 127700

5.5.27 27th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
133800 133800

5.5.28 28th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
139800 139800

5.5.29 29th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
148100 148100

5.5.30 30th Energy Level

Not Available
Rank: N/A (Overall)
Molybdenum
154500 154500

5.6 Electrochemical Equivalent

2.45 g/amp-hr
Rank: 21 (Overall)
Beryllium
0.16812 8.3209

5.7 Electron Work Function

5.10 eV
Rank: 4 (Overall)
Cesium
2.14 5.65

5.8 Other Chemical Properties

Chemical Stability, Ionization, Solubility

6 Atomic

6.1 Atomic Number

79
Rank: 37 (Overall)
Lithium
3 117

6.2 Electron Configuration

[Xe] 4f14 5d10 6s1

6.3 Crystal Structure

Face Centered Cubic (FCC)

6.3.1 Crystal Lattice

6.4 Atom

6.4.1 Number of Protons

79
Rank: 37 (Overall)
Lithium
3 117

6.4.2 Number of Neutrons

118
Rank: 23 (Overall)
Lithium
4 184

6.4.3 Number of Electrons

79
Rank: 37 (Overall)
Lithium
3 117

6.5 Radius of an Atom

6.5.1 Atomic Radius

151.00 pm
Rank: 32 (Overall)
Beryllium
112 265

6.5.2 Covalent Radius

144.00 pm
Rank: 40 (Overall)
Beryllium
96 260

6.5.3 Van der Waals Radius

166.00 pm
Rank: 39 (Overall)
Zinc
139 348

6.6 Atomic Weight

196.97 amu
Rank: 33 (Overall)
Lithium
6.94 294

6.7 Atomic Volume

10.20 cm3/mol
Rank: 48 (Overall)
Manganese
1.39 71.07

6.8 Adjacent Atomic Numbers

6.8.1 Previous Element

6.8.2 Next Element

6.9 Valence Electron Potential

43.40 (-eV)
Rank: 41 (Overall)
Francium
8 392.42

6.10 Lattice Constant

407.82 pm
Rank: 21 (Overall)
Beryllium
228.58 891.25

6.11 Lattice Angles

π/2, π/2, π/2

6.12 Lattice C/A Ratio

1.61
Rank: 4 (Overall)
Beryllium
1.567 1.886

7 Mechanical

7.1 Density

7.1.1 Density At Room Temperature

19.30 g/cm3
Rank: 15 (Overall)
Lithium
0.534 40.7

7.1.2 Density When Liquid (at m.p.)

17.31 g/cm3
Rank: 6 (Overall)
Lithium
0.512 20

7.2 Tensile Strength

120.00 MPa
Rank: 15 (Overall)
Indium
2.5 11000

7.3 Viscosity

Not Available
Rank: N/A (Overall)
Mercury
0.001526 0.001526

7.4 Vapor Pressure

7.4.1 Vapor Pressure at 1000 K

0.00 (Pa)
Rank: 23 (Overall)
Cerium
2.47E-11 121

7.4.2 Vapor Pressure at 2000 K

67.00 (Pa)
Rank: 4 (Overall)
Tungsten
2.62E-10 774

7.5 Elasticity properties

7.5.1 Shear Modulus

27.00 GPa
Rank: 27 (Overall)
Potassium
1.3 222

7.5.2 Bulk Modulus

180.00 GPa
Rank: 9 (Overall)
Cesium
1.6 462

7.5.3 Young's Modulus

79.00 GPa
Rank: 24 (Overall)
Cesium
1.7 528

7.6 Poisson Ratio

0.40
Rank: 4 (Overall)
Beryllium
0.032 0.47

7.7 Other Mechanical Properties

Ductile, Malleable

8 Magnetic

8.1 Magnetic Characteristics

8.1.1 Specific Gravity

19.32
Rank: 8 (Overall)
Lithium
0.53 4500

8.1.2 Magnetic Ordering

Diamagnetic

8.1.3 Permeability

Not Available
Rank: N/A (Overall)
Bismuth
1.25643E-06 0.0063

8.1.4 Susceptibility

Not Available
Rank: N/A (Overall)
Bismuth
-0.000166 200000

8.2 Electrical Properties

8.2.1 Electrical Property

Conductor

8.2.2 Resistivity

2.20 nΩ·m
Rank: 53 (Overall)
Thallium
0.18 961

8.2.3 Electrical Conductivity

0.45 106/cm Ω
Rank: 3 (Overall)
Plutonium
0.00666 0.63

8.2.4 Electron Affinity

222.80 kJ/mol
Rank: 1 (Overall)
Mercury
0 222.8

9 Thermal

9.1 Specific Heat

0.13 J/(kg K)
Rank: 39 (Overall)
Americium
0.11 3.6

9.2 Molar Heat Capacity

25.42 J/mol·K
Rank: 40 (Overall)
Beryllium
16.443 62.7

9.3 Thermal Conductivity

318.00 W/m·K
Rank: 3 (Overall)
Neptunium
6.3 429

9.4 Critical Temperature

Not Available
Rank: N/A (Overall)
Ytterbium
26.3 3223

9.5 Thermal Expansion

14.20 µm/(m·K)
Rank: 26 (Overall)
Tungsten
4.5 97

9.6 Enthalpy

9.6.1 Enthalpy of Vaporization

324.40 kJ/mol
Rank: 27 (Overall)
Zinc
7.32 799.1

9.6.2 Enthalpy of Fusion

12.55 kJ/mol
Rank: 27 (Overall)
Cesium
2.1 35.23

9.6.3 Enthalpy of Atomization

364.00 kJ/mol
Rank: 25 (Overall)
Mercury
61.5 837

9.7 Standard Molar Entropy

47.40 J/mol.K
Rank: 32 (Overall)
Beryllium
9.5 198.1