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Bismuth Rubidium Comparison


Rubidium Bismuth comparison


Periodic Table

Symbol
Bi  
Rb  

Group Number
15  
3
1  
17

Period Number
6  
5  

Block
p block  
s block  

Element Family
Post-​Transition  
Alkali  

CAS Number
7440699  
22
7440177  
99+

Space Group Name
C12/m1  
Im_ 3m  

Space Group Number
12.00  
15
229.00  
2

Facts

Interesting Facts
  • Bismuth metal is soluble and reacts with concentrated nitric acid.
  • It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
  
  • Rubidium metal is 16th most common element found in the earth crust.
  • Rubidium metal also found in minerals as well as seawater.
  

Sources
Found in Minerals, Mining, Ores of Minerals  
Obtained from Lithium Production.  

History
  
  

Who Discovered
Claude François Geoffroy  
Robert Bunsen and Gustav Kirchhoff  

Discovery
In 1753  
In 1861  

Abundance
  
  

Abundance In Universe
0.00 %  
26
0.00 %  
17

Abundance In Sun
0.00 %  
14
0.00 %  
17

Abundance In Meteorites
0.00 %  
99+
0.00 %  
19

Abundance In Earth's Crust
0.00 %  
99+
0.01 %  
18

Abundance In Oceans
0.00 %  
24
0.00 %  
7

Abundance In Humans
0.00 %  
24
0.00 %  
8

Uses

Uses & Benefits
  • Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
  
  • Rubidium's main application is in the glass manufacturing.
  • Rubidium can very easily get ionized and hence it is used for ion engines, but it is still less efficient than that of Caesium.
  

Industrial Uses
Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
-  

Medical Uses
Pharmaceutical Industry  
-  

Other Uses
Alloys  
Alloys, Research Purposes  

Biological Properties
  
  

Toxicity
Low Toxic  
Non Toxic  

Present in Human Body
Yes  
Yes  

In Blood
0.02 Blood/mg dm-3  
20
2.49 Blood/mg dm-3  
7

In Bone
0.20 p.p.m.  
27
5.00 p.p.m.  
13

Physical

Melting Point
271.30 °C  
99+
38.89 °C  
99+

Boiling Point
1,560.00 °C  
99+
688.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silver  
Grayish White  

Luster
Metallic  
-  

Hardness
  
  

Mohs Hardness
2.25  
16
0.30  
26

Brinell Hardness
70.00 MPa  
99+
0.22 MPa  
99+

Vickers Hardness
30.00 MPa  
99+
0.22 MPa  
99+

Speed of Sound
1,790.00 m/s  
99+
1,300.00 m/s  
99+

Optical Properties
  
  

Refractive Index
2.50  
5
1.54  
35

Reflectivity
70.00 %  
13
52.00 %  
29

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Bi  
Rb  

Isotopes
  
  

Known Isotopes
33  
6
29  
10

Electronegativity
  
  

Pauling Electronegativity
2.02  
7
0.82  
99+

Sanderson Electronegativity
2.34  
3
0.31  
99+

Allred Rochow Electronegativity
1.67  
7
0.89  
99+

Mulliken-Jaffe Electronegativity
2.15  
8
0.69  
99+

Allen Electronegativity
2.01  
5
0.71  
99+

Electropositivity
  
  

Pauling Electropositivity
1.98  
99+
3.18  
3

Ionization Energies
  
  

1st Energy Level
703.00 kJ/mol  
35
403.00 kJ/mol  
99+

2nd Energy Level
1,610.00 kJ/mol  
34
2,633.00 kJ/mol  
6

3rd Energy Level
2,466.00 kJ/mol  
99+
3,860.00 kJ/mol  
11

4th Energy Level
4,370.00 kJ/mol  
38
5,080.00 kJ/mol  
28

5th Energy Level
5,400.00 kJ/mol  
99+
6,850.00 kJ/mol  
31

6th Energy Level
8,520.00 kJ/mol  
29
8,140.00 kJ/mol  
31

7th Energy level
7,030.00 kJ/mol  
99+
9,570.00 kJ/mol  
20

8th Energy Level
7,030.00 kJ/mol  
37
13,120.00 kJ/mol  
17

9th Energy Level
7,030.00 kJ/mol  
34
14,500.00 kJ/mol  
18

10th Energy Level
7,030.00 kJ/mol  
38
26,740.00 kJ/mol  
6

11th Energy Level
7,030.00 kJ/mol  
36
4,030.00 kJ/mol  
99+

12th Energy Level
7,030.00 kJ/mol  
99+
4,030.00 kJ/mol  
99+

13th Energy Level
7,030.00 kJ/mol  
32
4,030.00 kJ/mol  
99+

14th Energy Level
7,030.00 kJ/mol  
22
4,030.00 kJ/mol  
99+

15th Energy Level
70,300.00 kJ/mol  
28
40,300.00 kJ/mol  
99+

16th Energy Level
70,300.00 kJ/mol  
23
40,300.00 kJ/mol  
99+

17th Energy Level
703.00 kJ/mol  
99+
403.00 kJ/mol  
99+

18th Energy Level
7,030.00 kJ/mol  
34
4,030.00 kJ/mol  
99+

19th Energy Level
703.00 kJ/mol  
40
403.00 kJ/mol  
99+

20th Energy Level
703.00 kJ/mol  
34
403.00 kJ/mol  
99+

21st Energy Level
7,030.00 kJ/mol  
12
403.00 kJ/mol  
99+

22nd Energy Level
703.00 kJ/mol  
28
403.00 kJ/mol  
99+

23rd Energy Level
7,030.00 kJ/mol  
10
403.00 kJ/mol  
99+

24th Energy Level
703.00 kJ/mol  
27
403.00 kJ/mol  
99+

25th Energy Level
703.00 kJ/mol  
29
403.00 kJ/mol  
99+

26th Energy Level
703.00 kJ/mol  
28
403.00 kJ/mol  
99+

27th Energy Level
703.00 kJ/mol  
29
403.00 kJ/mol  
99+

28th Energy Level
703.00 kJ/mol  
34
403.00 kJ/mol  
99+

29th Energy Level
703.00 kJ/mol  
35
403.00 kJ/mol  
99+

30th Energy Level
703.00 kJ/mol  
29
403.00 kJ/mol  
99+

Electrochemical Equivalent
2.60 g/amp-hr  
23
3.19 g/amp-hr  
16

Electron Work Function
4.22 eV  
29
2.16 eV  
99+

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

Atomic

Atomic Number
83  
33
37  
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p3  
[Kr] 5s1  

Crystal Structure
Rhombohedral (RHO)  
Body Centered Cubic (BCC)  

Crystal Lattice
RHO-Crystal-Structure-of-Bismuth.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
83  
33
37  
99+

Number of Neutrons
126  
19
48  
99+

Number of Electrons
83  
33
37  
99+

Radius of an Atom
  
  

Atomic Radius
156.00 pm  
31
248.00 pm  
3

Covalent Radius
148.00 pm  
38
220.00 pm  
4

Van der Waals Radius
207.00 pm  
33
303.00 pm  
4

Atomic Weight
208.98 amu  
29
85.47 amu  
99+

Atomic Volume
21.30 cm3/mol  
23
55.90 cm3/mol  
3

Adjacent Atomic Numbers
  
  

Previous Element
Lead
  
Gallium
  

Next Element
Polonium
  
Strontium
  

Valence Electron Potential
41.90 (-eV)  
99+
9.47 (-eV)  
99+

Lattice Constant
667.40 pm  
2
558.50 pm  
11

Lattice Angles
-  
π/2, π/2, π/2  

Lattice C/A Ratio
1.86  
4
1.59  
28

Mechanical

Density
  
  

Density At Room Temperature
9.78 g/cm3  
99+
1.53 g/cm3  
99+

Density When Liquid (at m.p.)
10.05 g/cm3  
99+
1.46 g/cm3  
99+

Tensile Strength
32.00 MPa  
99+
30.00 MPa  
99+

Viscosity
0.00  
29
0.00  
23

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
37

Vapor Pressure at 2000 K
0.00 (Pa)  
24
0.00 (Pa)  
35

Elasticity properties
  
  

Shear Modulus
12.00 GPa  
99+
2.50 GPa  
99+

Bulk Modulus
31.00 GPa  
99+
2.50 GPa  
99+

Young's Modulus
32.00 GPa  
99+
2.40 GPa  
99+

Poisson Ratio
0.33  
11
0.37  
7

Other Mechanical Properties
-  
Ductile  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
9.79  
99+
1.53  
99+

Magnetic Ordering
Diamagnetic  
Paramagnetic  

Permeability
0.00 H/m  
20
0.00 H/m  
11

Susceptibility
0.00  
36
0.00  
24

Electrical Properties
  
  

Electrical Property
Semiconductor  
Conductor  

Resistivity
1.29 nΩ·m  
99+
128.00 nΩ·m  
26

Electrical Conductivity
0.01 106/cm Ω  
99+
0.08 106/cm Ω  
29

Electron Affinity
91.20 kJ/mol  
13
46.90 kJ/mol  
29

Thermal

Specific Heat
0.12 J/(kg K)  
99+
0.36 J/(kg K)  
17

Molar Heat Capacity
25.52 J/mol·K  
99+
31.06 J/mol·K  
7

Thermal Conductivity
7.97 W/m·K  
99+
58.20 W/m·K  
26

Critical Temperature
544.00 K  
99+
2,093.00 K  
18

Thermal Expansion
13.40 µm/(m·K)  
34
90.00 µm/(m·K)  
2

Enthalpy
  
  

Enthalpy of Vaporization
151.00 kJ/mol  
99+
69.20 kJ/mol  
99+

Enthalpy of Fusion
10.90 kJ/mol  
39
2.19 kJ/mol  
99+

Enthalpy of Atomization
207.10 kJ/mol  
99+
82.00 kJ/mol  
99+

Standard Molar Entropy
56.70 J/mol.K  
32
76.80 J/mol.K  
5

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