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Tin vs Technetium

Tin
Technetium
Technetium vs Tin


Periodic Table
Symbol
Sn  
Tc  
Group Number
14  
4
7  
11
Period Number
5  
5  
Block
p block  
d block  
Element Family
Post-​Transition  
Transition Metal  
CAS Number
7440315  
99+
7440268  
99+
Space Group Name
I41/amd  
P63/mmc  
Space Group Number
141.00  
10
194.00  
7
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.
  
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
Sources
Found in Minerals, Mining  
Made by Bombarding Molybdenum with Deuterons  
History
  
  
Who Discovered
-  
Emilio Segrè and Carlo Perriero  
Discovery
Before 3500 BC  
In 1937  
Abundance
  
  
Abundance In Universe
0.00 %  
21
0.00 %  
40
Abundance In Sun
0.00 %  
19
0.00 %  
18
Abundance In Meteorites
0.00 %  
24
-  
Abundance In Earth's Crust
0.00 %  
34
0.00 %  
99+
Abundance In Oceans
0.00 %  
26
-  
Abundance In Humans
0.00 %  
15
-  
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.
  
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
Industrial Uses
Automobile Industry, Chemical Industry, Food Industry  
-  
Medical Uses
Dentistry  
-  
Other Uses
-  
Alloys, Nuclear Research, Research Purposes  
Biological Properties
  
  
Toxicity
Non Toxic  
Low Toxic  
Present in Human Body
Yes  
No  
In Blood
0.38 Blood/mg dm-3  
10
0.00 Blood/mg dm-3  
40
In Bone
1.40 p.p.m.  
17
0.00 p.p.m.  
99+
Physical
Melting Point
231.90 °C  
99+
2,200.00 °C  
9
Boiling Point
2,270.00 °C  
99+
4,877.00 °C  
7
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Shiny Gray  
Luster
-  
-  
Hardness
  
  
Mohs Hardness
1.50  
19
2.25  
16
Brinell Hardness
50.00 MPa  
99+
550.00 MPa  
27
Vickers Hardness
50.00 MPa  
99+
500.00 MPa  
35
Speed of Sound
2,730.00 m/s  
99+
16,200.00 m/s  
1
Optical Properties
  
  
Refractive Index
2.40  
7
1.90  
18
Reflectivity
51.00 %  
30
35.00 %  
34
Allotropes
Yes  
No  
α Allotropes
Grey Tin (alpha Tin, Tin Pest)  
-  
β Allotropes
White Tin (Beta Tin)  
-  
γ Allotropes
Rhombic Tin (gamma Tin)  
-  
Chemical
Chemical Formula
Sn  
Tc  
Isotopes
  
  
Known Isotopes
35  
4
18  
21
Electronegativity
  
  
Pauling Electronegativity
1.96  
9
1.90  
12
Sanderson Electronegativity
1.49  
19
1.90  
13
Allred Rochow Electronegativity
1.72  
5
1.36  
21
Mulliken-Jaffe Electronegativity
2.21  
5
1.90  
13
Allen Electronegativity
1.82  
14
1.51  
31
Electropositivity
  
  
Pauling Electropositivity
2.04  
99+
2.10  
99+
Ionization Energies
  
  
1st Energy Level
708.60 kJ/mol  
33
702.00 kJ/mol  
36
2nd Energy Level
1,411.80 kJ/mol  
99+
1,470.00 kJ/mol  
99+
3rd Energy Level
2,943.00 kJ/mol  
30
2,850.00 kJ/mol  
34
4th Energy Level
3,930.30 kJ/mol  
99+
7,020.00 kJ/mol  
14
5th Energy Level
7,456.00 kJ/mol  
21
7,020.00 kJ/mol  
28
6th Energy Level
7,080.00 kJ/mol  
99+
7,020.00 kJ/mol  
99+
7th Energy level
7,080.00 kJ/mol  
39
4,700.00 kJ/mol  
99+
8th Energy Level
7,080.00 kJ/mol  
35
4,700.00 kJ/mol  
99+
9th Energy Level
7,080.00 kJ/mol  
32
7,020.00 kJ/mol  
35
10th Energy Level
7,080.00 kJ/mol  
36
7,020.00 kJ/mol  
39
11th Energy Level
7,080.00 kJ/mol  
34
7,020.00 kJ/mol  
37
12th Energy Level
7,080.00 kJ/mol  
99+
7,020.00 kJ/mol  
99+
13th Energy Level
7,080.00 kJ/mol  
31
7,020.00 kJ/mol  
33
14th Energy Level
708.60 kJ/mol  
99+
7,020.00 kJ/mol  
23
15th Energy Level
70,800.00 kJ/mol  
27
70,200.00 kJ/mol  
29
16th Energy Level
70,800.00 kJ/mol  
22
70,200.00 kJ/mol  
24
17th Energy Level
708.60 kJ/mol  
99+
702.50 kJ/mol  
99+
18th Energy Level
7,086.00 kJ/mol  
33
7,020.00 kJ/mol  
35
19th Energy Level
708.60 kJ/mol  
39
702.00 kJ/mol  
99+
20th Energy Level
708.00 kJ/mol  
33
702.00 kJ/mol  
35
21st Energy Level
708.60 kJ/mol  
99+
702.00 kJ/mol  
99+
22nd Energy Level
708.00 kJ/mol  
27
702.00 kJ/mol  
29
23rd Energy Level
708.60 kJ/mol  
99+
702.00 kJ/mol  
99+
24th Energy Level
708.60 kJ/mol  
26
702.50 kJ/mol  
28
25th Energy Level
708.60 kJ/mol  
28
702.00 kJ/mol  
30
26th Energy Level
708.60 kJ/mol  
27
702.00 kJ/mol  
29
27th Energy Level
708.60 kJ/mol  
27
702.00 kJ/mol  
30
28th Energy Level
708.60 kJ/mol  
32
702.00 kJ/mol  
35
29th Energy Level
708.60 kJ/mol  
33
702.00 kJ/mol  
36
30th Energy Level
708.60 kJ/mol  
27
702.00 kJ/mol  
30
Electrochemical Equivalent
1.11 g/amp-hr  
99+
0.52 g/amp-hr  
99+
Electron Work Function
4.42 eV  
22
4.90 eV  
12
Other Chemical Properties
Ionization, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
50  
99+
43  
99+
Electron Configuration
[Kr] 4d10 5s2 5p2  
[Kr] 4d5 5s2  
Crystal Structure
Tetragonal (TETR)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
TETR-Crystal-Structure-of-Tin.jpg#100  
HCP-Crystal-Structure-of-Technetium.jpg#100  
Atom
  
  
Number of Protons
50  
99+
43  
99+
Number of Neutrons
69  
99+
55  
99+
Number of Electrons
50  
99+
43  
99+
Radius of an Atom
  
  
Atomic Radius
140.00 pm  
40
136.00 pm  
99+
Covalent Radius
139.00 pm  
99+
147.00 pm  
39
Van der Waals Radius
217.00 pm  
29
200.00 pm  
35
Atomic Weight
118.71 amu  
99+
98.00 amu  
99+
Atomic Volume
16.30 cm3/mol  
99+
8.50 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Indium
  
Molybdenum
  
Next Element
Cesium
  
Ruthenium
  
Valence Electron Potential
83.50 (-eV)  
14
180.00 (-eV)  
3
Lattice Constant
583.18 pm  
7
273.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
0.68  
99+
1.60  
21
Mechanical
Density
  
  
Density At Room Temperature
7.37 g/cm3  
99+
11.00 g/cm3  
36
Density When Liquid (at m.p.)
6.99 g/cm3  
99+
11.00 g/cm3  
34
Tensile Strength
15.00 MPa  
99+
50.00 MPa  
38
Viscosity
0.00  
15
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
18
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
38
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
18.00 GPa  
99+
27.00 GPa  
34
Bulk Modulus
58.00 GPa  
21
100.00 GPa  
16
Young's Modulus
50.00 GPa  
39
50.00 GPa  
39
Poisson Ratio
0.36  
8
0.38  
6
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
7.31  
99+
11.50  
37
Magnetic Ordering
Diamagnetic  
Paramagnetic  
Permeability
0.00 H/m  
17
0.00 H/m  
17
Susceptibility
0.00  
30
0.00  
24
Electrical Properties
  
  
Electrical Property
Superconductor  
Conductor  
Resistivity
115.00 nΩ·m  
28
200.00 nΩ·m  
18
Electrical Conductivity
0.09 106/cm Ω  
28
0.07 106/cm Ω  
35
Electron Affinity
107.30 kJ/mol  
9
53.00 kJ/mol  
23
Thermal
Specific Heat
0.23 J/(kg K)  
28
0.21 J/(kg K)  
30
Molar Heat Capacity
27.11 J/mol·K  
26
24.27 J/mol·K  
99+
Thermal Conductivity
66.80 W/m·K  
25
50.60 W/m·K  
30
Critical Temperature
505.00 K  
99+
2,150.00 K  
16
Thermal Expansion
22.00 µm/(m·K)  
21
7.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
290.40 kJ/mol  
99+
660.00 kJ/mol  
7
Enthalpy of Fusion
7.03 kJ/mol  
99+
23.01 kJ/mol  
9
Enthalpy of Atomization
301.30 kJ/mol  
99+
649.00 kJ/mol  
9
Standard Molar Entropy
51.20 J/mol.K  
40
181.10 J/mol.K  
2
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