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Barium Gold Comparison


Gold Barium comparison


Periodic Table

Symbol
Ba  
Au  

Group Number
2  
16
11  
7

Period Number
6  
6  

Block
s block  
d block  

Element Family
Alkaline Earth  
Transition Metal  

CAS Number
7440393  
99+
7440575  
31

Space Group Name
Im_ 3m  
Fm_ 3m  

Space Group Number
229.00  
2
225.00  
3

Facts

Interesting Facts
  • Barium oxidizes very easily in the air.
  • All toxic compounds of Barium can easily dissolve in water.
  • Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
  
  • 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
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Earth's crust, Mining, Ores of metals  

History
  
  

Who Discovered
Carl Wilhelm Scheele  
-  

Discovery
In 1772  
Before 6000 BCE  

Abundance
  
  

Abundance In Universe
0.00 %  
17
0.00 %  
27

Abundance In Sun
0.00 %  
18
0.00 %  
26

Abundance In Meteorites
0.00 %  
20
0.00 %  
99+

Abundance In Earth's Crust
0.03 %  
11
0.00 %  
99+

Abundance In Oceans
0.00 %  
8
0.00 %  
21

Abundance In Humans
0.00 %  
13
0.00 %  
21

Uses

Uses & Benefits
  • It is sued in chemical paint manufacturing and glass manufacturing.
  • Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
  
  • 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
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Chemical Industry, Clothing Industry, Electrical Industry, Electronic Industry  

Medical Uses
-  
Dentistry, Pharmaceutical Industry  

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

Biological Properties
  
  

Toxicity
Low Toxic  
Non Toxic  

Present in Human Body
Yes  
Yes  

In Blood
0.07 Blood/mg dm-3  
15
0.00 Blood/mg dm-3  
38

In Bone
70.00 p.p.m.  
9
0.02 p.p.m.  
35

Physical

Melting Point
725.00 °C  
99+
1,064.43 °C  
99+

Boiling Point
1,140.00 °C  
99+
2,807.00 °C  
37

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silvery Gray  
Gold  

Luster
-  
Metallic  

Hardness
  
  

Mohs Hardness
1.25  
20
2.50  
15

Brinell Hardness
130.00 MPa  
99+
194.00 MPa  
99+

Vickers Hardness
210.00 MPa  
99+
216.00 MPa  
99+

Speed of Sound
1,620.00 m/s  
99+
2,030.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.47  
38
0.47  
99+

Reflectivity
65.00 %  
18
95.00 %  
2

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Ba  
Au  

Isotopes
  
  

Known Isotopes
37  
2
36  
3

Electronegativity
  
  

Pauling Electronegativity
0.89  
99+
2.54  
2

Sanderson Electronegativity
0.68  
99+
1.50  
18

Allred Rochow Electronegativity
0.97  
39
1.42  
19

Mulliken-Jaffe Electronegativity
0.88  
99+
1.87  
15

Allen Electronegativity
0.88  
99+
1.92  
7

Electropositivity
  
  

Pauling Electropositivity
3.11  
4
1.46  
99+

Ionization Energies
  
  

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

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

3rd Energy Level
3,600.00 kJ/mol  
14
2,856.00 kJ/mol  
33

4th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
99+

5th Energy Level
5,020.00 kJ/mol  
99+
8,901.00 kJ/mol  
6

6th Energy Level
5,020.00 kJ/mol  
99+
8,901.00 kJ/mol  
24

7th Energy level
5,020.00 kJ/mol  
99+
8,901.00 kJ/mol  
21

8th Energy Level
5,020.00 kJ/mol  
99+
8,900.00 kJ/mol  
20

9th Energy Level
5,020.00 kJ/mol  
99+
8,901.00 kJ/mol  
20

10th Energy Level
5,020.00 kJ/mol  
99+
8,901.00 kJ/mol  
21

11th Energy Level
5,020.00 kJ/mol  
99+
8,901.00 kJ/mol  
19

12th Energy Level
5,020.00 kJ/mol  
99+
8,900.00 kJ/mol  
39

13th Energy Level
5,020.00 kJ/mol  
99+
8,900.00 kJ/mol  
14

14th Energy Level
5,020.00 kJ/mol  
99+
890.10 kJ/mol  
99+

15th Energy Level
50,200.00 kJ/mol  
99+
89,000.00 kJ/mol  
7

16th Energy Level
50,270.00 kJ/mol  
99+
890.10 kJ/mol  
99+

17th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
25

18th Energy Level
5,020.00 kJ/mol  
99+
8,901.00 kJ/mol  
14

19th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
23

20th Energy Level
502.00 kJ/mol  
99+
890.00 kJ/mol  
13

21st Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
35

22nd Energy Level
502.00 kJ/mol  
99+
890.00 kJ/mol  
11

23rd Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
38

24th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
6

25th Energy Level
503.00 kJ/mol  
99+
890.00 kJ/mol  
5

26th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
5

27th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
4

28th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
7

29th Energy Level
502.90 kJ/mol  
99+
890.10 kJ/mol  
8

30th Energy Level
503.00 kJ/mol  
99+
890.10 kJ/mol  
5

Electrochemical Equivalent
2.56 g/amp-hr  
24
2.45 g/amp-hr  
25

Electron Work Function
2.70 eV  
99+
5.10 eV  
8

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

Atomic

Atomic Number
56  
99+
79  
37

Electron Configuration
[Xe] 6s2  
[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
56  
99+
79  
37

Number of Neutrons
81  
99+
118  
24

Number of Electrons
56  
99+
79  
37

Radius of an Atom
  
  

Atomic Radius
222.00 pm  
5
151.00 pm  
34

Covalent Radius
215.00 pm  
5
144.00 pm  
99+

Van der Waals Radius
268.00 pm  
8
166.00 pm  
99+

Atomic Weight
137.33 amu  
99+
196.97 amu  
33

Atomic Volume
39.24 cm3/mol  
6
10.20 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Cesium
  
Platinum
  

Next Element
Lanthanum
  
Mercury
  

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

Lattice Constant
502.80 pm  
17
407.82 pm  
24

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

Lattice C/A Ratio
1.57  
99+
1.61  
18

Mechanical

Density
  
  

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

Density When Liquid (at m.p.)
3.34 g/cm3  
99+
17.31 g/cm3  
16

Tensile Strength
55.00 MPa  
37
120.00 MPa  
27

Viscosity
0.00  
2
0.00  
23

Vapor Pressure
  
  

Vapor Pressure at 1000 K
7.11 (Pa)  
6
0.00 (Pa)  
25

Vapor Pressure at 2000 K
0.00 (Pa)  
30
67.00 (Pa)  
4

Elasticity properties
  
  

Shear Modulus
4.90 GPa  
99+
27.00 GPa  
34

Bulk Modulus
9.60 GPa  
99+
180.00 GPa  
9

Young's Modulus
13.00 GPa  
99+
79.00 GPa  
26

Poisson Ratio
0.22  
31
0.40  
4

Other Mechanical Properties
-  
Ductile, Malleable  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
3.62  
99+
19.32  
17

Magnetic Ordering
Paramagnetic  
Diamagnetic  

Permeability
0.00 H/m  
15
0.00 H/m  
10

Susceptibility
0.00  
24
0.00  
22

Electrical Properties
  
  

Electrical Property
Superconductor  
Conductor  

Resistivity
332.00 nΩ·m  
13
2.20 nΩ·m  
99+

Electrical Conductivity
0.03 106/cm Ω  
99+
0.45 106/cm Ω  
3

Electron Affinity
13.95 kJ/mol  
99+
222.80 kJ/mol  
1

Thermal

Specific Heat
0.20 J/(kg K)  
31
0.13 J/(kg K)  
40

Molar Heat Capacity
28.07 J/mol·K  
15
25.42 J/mol·K  
99+

Thermal Conductivity
18.40 W/m·K  
99+
318.00 W/m·K  
3

Critical Temperature
1,000.00 K  
99+
1,337.00 K  
99+

Thermal Expansion
20.60 µm/(m·K)  
24
14.20 µm/(m·K)  
29

Enthalpy
  
  

Enthalpy of Vaporization
140.00 kJ/mol  
99+
324.40 kJ/mol  
99+

Enthalpy of Fusion
7.66 kJ/mol  
99+
12.55 kJ/mol  
33

Enthalpy of Atomization
175.70 kJ/mol  
99+
364.00 kJ/mol  
34

Standard Molar Entropy
62.50 J/mol.K  
25
47.40 J/mol.K  
99+

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