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Technetium vs Tin

Technetium
Tin
Tin vs Technetium


Periodic Table
Symbol
Tc   
Sn   
Group Number
7   
11
14   
4
Period Number
5   
5   
Block
d block   
p block   
Element Family
Transition Metal   
Post-​Transition   
CAS Number
7440268   
99+
7440315   
99+
Space Group Name
P63/mmc   
I41/amd   
Space Group Number
194.00   
5
141.00   
7
Facts
Interesting Facts
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
  • 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.
  
Sources
Made by Bombarding Molybdenum with Deuterons   
Found in Minerals, Mining   
History
  
  
Who Discovered
Emilio Segrè and Carlo Perriero   
Unknown   
Discovery
In 1937   
Before 3500 BC   
Abundance
  
  
Abundance In Universe
Not Available   
4 * 10-7 %   
20
Abundance In Sun
~-9999 %   
~0.0000009 %   
19
Abundance In Meteorites
Not Available   
0.00 %   
24
Abundance In Earth's Crust
Not Available   
0.00 %   
34
Abundance In Oceans
Not Available   
0.00 %   
26
Abundance In Humans
Not Available   
0.00 %   
13
Uses
Uses & Benefits
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
  • 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.
  
Industrial Uses
NA   
Automobile Industry, Chemical Industry, Food Industry   
Medical Uses
NA   
Dentistry   
Other Uses
Alloys, Nuclear Research, Research Purposes   
NA   
Biological Properties
  
  
Toxicity
Low Toxic   
Non Toxic   
Present in Human Body
No   
Yes   
In Blood
0.00 Blood/mg dm-3   
37
0.38 Blood/mg dm-3   
10
In Bone
0.00 p.p.m.   
36
1.40 p.p.m.   
16
Physical Properties
Melting Point
2,200.00 °C   
9
231.90 °C   
99+
Boiling Point
4,877.00 °C   
7
2,270.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Shiny Gray   
Silvery White   
Luster
NA   
NA   
Hardness
  
  
Mohs Hardness
Not Available   
1.50   
18
Brinell Hardness
Not Available   
50.00 MPa   
99+
Speed of Sound
16,200.00 m/s   
1
2,730.00 m/s   
32
Optical Properties
  
  
Allotropes
No   
Yes   
α Allotropes
Not Available   
Grey Tin (alpha Tin, Tin Pest)   
β Allotropes
Not Available   
White Tin (Beta Tin)   
γ Allotropes
Not Available   
Rhombic Tin (gamma Tin)   
Chemical Properties
Chemical Formula
Tc   
Sn   
Isotopes
  
  
Known Isotopes
18   
21
35   
4
Electronegativity
  
  
Pauling Electronegativity
1.90   
11
1.96   
8
Sanderson Electronegativity
Not Available   
1.49   
15
Allred Rochow Electronegativity
1.36   
20
1.72   
4
Mulliken-Jaffe Electronegativity
Not Available   
2.21   
3
Allen Electronegativity
1.51   
28
1.82   
11
Electropositivity
  
  
Pauling Electropositivity
2.10   
99+
2.04   
99+
Ionization Energies
  
  
1st Energy Level
702.00 kJ/mol   
36
708.60 kJ/mol   
33
2nd Energy Level
1,470.00 kJ/mol   
99+
1,411.80 kJ/mol   
99+
3rd Energy Level
2,850.00 kJ/mol   
33
2,943.00 kJ/mol   
30
4th Energy Level
Not Available   
3,930.30 kJ/mol   
99+
5th Energy Level
Not Available   
7,456.00 kJ/mol   
13
Electrochemical Equivalent
0.52 g/amp-hr   
99+
1.11 g/amp-hr   
99+
Electron Work Function
Not Available   
4.42 eV   
16
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Ionization, Solubility   
Atomic Properties
Atomic Number
43   
99+
50   
99+
Electron Configuration
[Kr] 4d5 5s2   
[Kr] 4d10 5s2 5p2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Tetragonal (TETR)   
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100   
TETR-Crystal-Structure-of-Tin.jpg#100   
Atom
  
  
Number of Protons
43   
99+
50   
99+
Number of Neutrons
55   
99+
69   
99+
Number of Electrons
43   
99+
50   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
140.00 pm   
38
Covalent Radius
147.00 pm   
37
139.00 pm   
99+
Van der Waals Radius
200.00 pm   
28
217.00 pm   
23
Atomic Weight
98.00 amu   
99+
118.71 amu   
99+
Atomic Volume
8.50 cm3/mol   
99+
16.30 cm3/mol   
32
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Indium
  
Next Element
Ruthenium
  
Cesium
  
Valence Electron Potential
180.00 (-eV)   
3
83.50 (-eV)   
14
Lattice Constant
273.50 pm   
99+
583.18 pm   
7
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
5
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
11.00 g/cm3   
34
7.37 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
6.99 g/cm3   
34
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
17
Elasticity properties
  
  
Shear Modulus
Not Available   
18.00 GPa   
36
Bulk Modulus
Not Available   
58.00 GPa   
20
Young's Modulus
Not Available   
50.00 GPa   
36
Poisson Ratio
Not Available   
0.36   
8
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
11.50   
24
7.31   
99+
Magnetic Ordering
Paramagnetic   
Diamagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Superconductor   
Resistivity
200.00 nΩ·m   
18
115.00 nΩ·m   
28
Electrical Conductivity
0.07 106/cm Ω   
30
0.09 106/cm Ω   
23
Electron Affinity
53.00 kJ/mol   
18
107.30 kJ/mol   
8
Thermal Properties
Specific Heat
0.21 J/(kg K)   
29
0.23 J/(kg K)   
28
Molar Heat Capacity
24.27 J/mol·K   
99+
27.11 J/mol·K   
20
Thermal Conductivity
50.60 W/m·K   
30
66.80 W/m·K   
25
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
7.10 µm/(m·K)   
99+
22.00 µm/(m·K)   
20
Enthalpy
  
  
Enthalpy of Vaporization
660.00 kJ/mol   
6
290.40 kJ/mol   
32
Enthalpy of Fusion
23.01 kJ/mol   
9
7.03 kJ/mol   
99+
Enthalpy of Atomization
649.00 kJ/mol   
8
301.30 kJ/mol   
35
Standard Molar Entropy
181.10 J/mol.K   
2
51.20 J/mol.K   
29
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