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Sodium Gold Comparison


Gold Sodium comparison


Periodic Table

Symbol
Na   
Au   

Group Number
1   
17
11   
7

Period Number
3   
6   

Block
s block   
d block   

Element Family
Alkali   
Transition Metal   

CAS Number
7440235   
99+
7440575   
31

Space Group Name
Im_ 3m   
Fm_ 3m   

Space Group Number
229.00   
1
225.00   
2

Facts

Interesting Facts
  • At room temperature Sodium metal is very soft as it can be chopped down into pieces with butter knife.
  • The most common compound of Sodium is NaCl (Salt).
  
  • 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
By Electrolysis Process, Mining   
Earth's crust, Mining, Ores of metals   

History
  
  

Who Discovered
Humphry Davy   
Unknown   

Discovery
In 1807   
Before 6000 BCE   

Abundance
  
  

Abundance In Universe
2 * 10-3 %   
6
6 * 10-8 %   
26

Abundance In Sun
~0.004 %   
6
~0.0000001 %   
26

Abundance In Meteorites
0.55 %   
6
0.00 %   
99+

Abundance In Earth's Crust
2.30 %   
5
0.00 %   
99+

Abundance In Oceans
1.10 %   
1
0.00 %   
21

Abundance In Humans
0.14 %   
3
0.00 %   
18

Uses

Uses & Benefits
  • In some nuclear reactors sodium is used as a heat exchanger.
  • Compound of Sodium metals called Salt (Sodium chloride) is used in Food.
  
  • 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
Electrical Industry, Electronic Industry   
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry   

Medical Uses
Pharmaceutical Industry   
Dentistry, Pharmaceutical Industry   

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

Biological Properties
  
  

Toxicity
Toxic   
Non Toxic   

Present in Human Body
Yes   
Yes   

In Blood
1,970.00 Blood/mg dm-3   
1
0.00 Blood/mg dm-3   
35

In Bone
10,000.00 p.p.m.   
2
0.02 p.p.m.   
30

Physical Properties

Melting Point
97.72 °C   
99+
1,064.43 °C   
99+

Boiling Point
883.00 °C   
99+
2,807.00 °C   
36

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Gold   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
0.50   
22
2.50   
14

Brinell Hardness
0.69 MPa   
99+
194.00 MPa   
99+

Vickers Hardness
Not Available   
216.00 MPa   
31

Speed of Sound
3,200.00 m/s   
24
2,030.00 m/s   
99+

Optical Properties
  
  

Reflectivity
Not Available   
95.00 %   
2

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
Na   
Au   

Isotopes
  
  

Known Isotopes
17   
22
36   
3

Electronegativity
  
  

Pauling Electronegativity
0.93   
99+
2.54   
1

Sanderson Electronegativity
0.56   
30
Not Available   

Allred Rochow Electronegativity
1.01   
35
1.42   
18

Mulliken-Jaffe Electronegativity
0.91   
21
1.87   
7

Allen Electronegativity
0.87   
99+
1.92   
5

Electropositivity
  
  

Pauling Electropositivity
3.07   
6
1.46   
99+

Ionization Energies
  
  

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

2nd Energy Level
4,562.00 kJ/mol   
4
1,980.00 kJ/mol   
12

3rd Energy Level
6,910.30 kJ/mol   
6
Not Available   

4th Energy Level
9,543.00 kJ/mol   
5
Not Available   

5th Energy Level
13,354.00 kJ/mol   
4
Not Available   

6th Energy Level
16,613.00 kJ/mol   
4
Not Available   

7th Energy level
20,117.00 kJ/mol   
4
Not Available   

8th Energy Level
25,496.00 kJ/mol   
4
Not Available   

9th Energy Level
28,932.00 kJ/mol   
4
Not Available   

10th Energy Level
141,362.00 kJ/mol   
2
Not Available   

11th Energy Level
159,076.00 kJ/mol   
2
Not Available   

Electrochemical Equivalent
0.86 g/amp-hr   
99+
2.45 g/amp-hr   
21

Electron Work Function
2.75 eV   
40
5.10 eV   
4

Other Chemical Properties
Chemical Stability, Corrosion, Flammability, Ionization, Solubility   
Chemical Stability, Ionization, Solubility   

Atomic Properties

Atomic Number
11   
99+
79   
37

Electron Configuration
[Ne] 3s1   
[Xe] 4f14 5d10 6s1   

Crystal Structure
Body Centered Cubic (BCC)   
Face Centered Cubic (FCC)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Gold.jpg#100   

Atom
  
  

Number of Protons
11   
99+
79   
37

Number of Neutrons
12   
99+
118   
23

Number of Electrons
11   
99+
79   
37

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
151.00 pm   
32

Covalent Radius
166.00 pm   
27
144.00 pm   
40

Van der Waals Radius
227.00 pm   
21
166.00 pm   
39

Atomic Weight
22.99 amu   
99+
196.97 amu   
33

Atomic Volume
23.70 cm3/mol   
10
10.20 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Beryllium
  
Platinum
  

Next Element
Magnesium
  
Mercury
  

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

Lattice Constant
429.06 pm   
19
407.82 pm   
21

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
1.61   
4

Mechanical Properties

Density
  
  

Density At Room Temperature
0.97 g/cm3   
99+
19.30 g/cm3   
15

Density When Liquid (at m.p.)
0.93 g/cm3   
99+
17.31 g/cm3   
6

Tensile Strength
Not Available   
120.00 MPa   
15

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

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

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

Elasticity properties
  
  

Shear Modulus
3.30 GPa   
99+
27.00 GPa   
27

Bulk Modulus
6.30 GPa   
99+
180.00 GPa   
9

Young's Modulus
10.00 GPa   
99+
79.00 GPa   
24

Poisson Ratio
Not Available   
0.40   
4

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
0.97   
99+
19.32   
8

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
47.70 nΩ·m   
99+
2.20 nΩ·m   
99+

Electrical Conductivity
0.21 106/cm Ω   
9
0.45 106/cm Ω   
3

Electron Affinity
52.80 kJ/mol   
19
222.80 kJ/mol   
1

Thermal Properties

Specific Heat
1.23 J/(kg K)   
3
0.13 J/(kg K)   
39

Molar Heat Capacity
28.23 J/mol·K   
10
25.42 J/mol·K   
40

Thermal Conductivity
142.00 W/m·K   
11
318.00 W/m·K   
3

Critical Temperature
2,573.00 K   
2
Not Available   

Thermal Expansion
71.00 µm/(m·K)   
4
14.20 µm/(m·K)   
26

Enthalpy
  
  

Enthalpy of Vaporization
89.04 kJ/mol   
99+
324.40 kJ/mol   
27

Enthalpy of Fusion
2.59 kJ/mol   
99+
12.55 kJ/mol   
27

Enthalpy of Atomization
108.40 kJ/mol   
99+
364.00 kJ/mol   
25

Standard Molar Entropy
51.30 J/mol.K   
28
47.40 J/mol.K   
32

Summary >>
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