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Tin vs Polonium


Tin
Polonium vs Tin


Periodic Table

Symbol
Sn   
Po   

Group Number
14   
4
16   
2

Period Number
5   
6   

Block
p block   
p block   

Element Family
Post-​Transition   
Post-​Transition   

CAS Number
7440315   
99+
7440086   
99+

Space Group Name
I41/amd   
Pm-3m   

Space Group Number
141.00   
7
221.00   
3

Facts

Interesting Facts
  • In the list of most abundant element Tin is ranked 49th.
  • Tin metal does not react with water as well as does not corrode in it.
  
  • Polonium was the first radioactive element to be discovered.
  • Polonium element and its compounds are highly radioactive.
  • Its alloy with Beryllium provides source of neutrons.
  

Sources
Found in Minerals, Mining   
Mining, Ores of metals   

History
  
  

Who Discovered
Unknown   
Pierre Curie and Marie Curie   

Discovery
Before 3500 BC   
In 1898   

Abundance
  
  

Abundance In Universe
4 * 10-7 %   
20
Not Available   

Abundance In Sun
~0.0000009 %   
19
~-9999 %   

Abundance In Meteorites
0.00 %   
24
Not Available   

Abundance In Earth's Crust
0.00 %   
34
Not Available   

Abundance In Oceans
0.00 %   
26
0.00 %   
99+

Abundance In Humans
0.00 %   
13
Not Available   

Uses

Uses & Benefits
  • Tin-niobium alloy is used for producing superconducting magnets.
  • Tin salt known as a tin II chloride, it is used as a mordant and as a reducing agent for dyeing calico and silk.
  
  • Polonium metal has different Allotropes, it is used in antistatic devices and for research purpose.
  • A 1 gram of Polonium can reach a temperature of 500°C, hence it is used as a heat source for space equipment.
  

Industrial Uses
Automobile Industry, Chemical Industry, Food Industry   
Aerospace Industry, Ammunition Industry   

Medical Uses
Dentistry   
NA   

Other Uses
NA   
Alloys   

Biological Properties
  
  

Toxicity
Non Toxic   
Highly Toxic   

Present in Human Body
Yes   
No   

In Blood
0.38 Blood/mg dm-3   
10
0.00 Blood/mg dm-3   
37

In Bone
1.40 p.p.m.   
16
0.00 p.p.m.   
36

Physical Properties

Melting Point
231.90 °C   
99+
254.00 °C   
99+

Boiling Point
2,270.00 °C   
99+
962.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silver   

Luster
NA   
NA   

Hardness
  
  

Mohs Hardness
1.50   
18
Not Available   

Brinell Hardness
50.00 MPa   
99+
Not Available   

Speed of Sound
2,730.00 m/s   
32
Not Available   

Optical Properties
  
  

Allotropes
Yes   
Yes   

α Allotropes
Grey Tin (alpha Tin, Tin Pest)   
α-polonium   

β Allotropes
White Tin (Beta Tin)   
β-polonium   

γ Allotropes
Rhombic Tin (gamma Tin)   
Not Available   

Chemical Properties

Chemical Formula
Sn   
Po   

Isotopes
  
  

Known Isotopes
35   
4
29   
10

Electronegativity
  
  

Pauling Electronegativity
1.96   
8
2.00   
7

Sanderson Electronegativity
1.49   
15
Not Available   

Allred Rochow Electronegativity
1.72   
4
1.76   
2

Mulliken-Jaffe Electronegativity
2.21   
3
2.48   
1

Allen Electronegativity
1.82   
11
2.19   
2

Electropositivity
  
  

Pauling Electropositivity
2.04   
99+
2.00   
99+

Ionization Energies
  
  

1st Energy Level
708.60 kJ/mol   
33
812.10 kJ/mol   
14

2nd Energy Level
1,411.80 kJ/mol   
99+
Not Available   

3rd Energy Level
2,943.00 kJ/mol   
30
Not Available   

4th Energy Level
3,930.30 kJ/mol   
99+
Not Available   

5th Energy Level
7,456.00 kJ/mol   
13
Not Available   

Electrochemical Equivalent
1.11 g/amp-hr   
99+
3.90 g/amp-hr   
8

Electron Work Function
4.42 eV   
16
Not Available   

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

Atomic Properties

Atomic Number
50   
99+
84   
32

Electron Configuration
[Kr] 4d10 5s2 5p2   
[Xe] 4f14 5d10 6s2 6p4   

Crystal Structure
Tetragonal (TETR)   
Monoclinic (MON)   

Crystal Lattice
TETR-Crystal-Structure-of-Tin.jpg#100   
MON-Crystal-Structure-of-Polonium.jpg#100   

Atom
  
  

Number of Protons
50   
99+
84   
32

Number of Neutrons
69   
99+
125   
19

Number of Electrons
50   
99+
84   
32

Radius of an Atom
  
  

Atomic Radius
140.00 pm   
38
168.00 pm   
23

Covalent Radius
139.00 pm   
99+
140.00 pm   
99+

Van der Waals Radius
217.00 pm   
23
197.00 pm   
29

Atomic Weight
118.71 amu   
99+
209.00 amu   
28

Atomic Volume
16.30 cm3/mol   
32
22.23 cm3/mol   
13

Adjacent Atomic Numbers
  
  

Previous Element
Indium
  
Bismuth
  

Next Element
Cesium
  
Francium
  

Valence Electron Potential
83.50 (-eV)   
14
Not Available   

Lattice Constant
583.18 pm   
7
335.90 pm   
99+

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

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
7.37 g/cm3   
99+
9.20 g/cm3   
99+

Density When Liquid (at m.p.)
6.99 g/cm3   
34
9.40 g/cm3   
19

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
17
Not Available   

Elasticity properties
  
  

Shear Modulus
18.00 GPa   
36
Not Available   

Bulk Modulus
58.00 GPa   
20
Not Available   

Young's Modulus
50.00 GPa   
36
Not Available   

Poisson Ratio
0.36   
8
Not Available   

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
7.31   
99+
9.32   
31

Magnetic Ordering
Diamagnetic   
Nonmagnetic   

Electrical Properties
  
  

Electrical Property
Superconductor   
Conductor   

Resistivity
115.00 nΩ·m   
28
0.40 nΩ·m   
99+

Electrical Conductivity
0.09 106/cm Ω   
23
0.02 106/cm Ω   
99+

Electron Affinity
107.30 kJ/mol   
8
183.30 kJ/mol   
3

Thermal Properties

Specific Heat
0.23 J/(kg K)   
28
0.12 J/(kg K)   
40

Molar Heat Capacity
27.11 J/mol·K   
20
26.40 J/mol·K   
28

Thermal Conductivity
66.80 W/m·K   
25
20.00 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
22.00 µm/(m·K)   
20
23.50 µm/(m·K)   
16

Enthalpy
  
  

Enthalpy of Vaporization
290.40 kJ/mol   
32
60.30 kJ/mol   
99+

Enthalpy of Fusion
7.03 kJ/mol   
99+
13.00 kJ/mol   
26

Enthalpy of Atomization
301.30 kJ/mol   
35
134.00 kJ/mol   
99+

Standard Molar Entropy
51.20 J/mol.K   
29
Not Available   

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