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Technetium vs Iron

Technetium
Iron
Iron vs Technetium


Periodic Table
Symbol
Tc  
Fe  
Group Number
7  
11
8  
10
Period Number
5  
4  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
7440268  
99+
7439896  
99+
Space Group Name
P63/mmc  
Im_ 3m  
Space Group Number
194.00  
7
229.00  
2
Facts
Interesting Facts
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
  • Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
  • The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
  
Sources
Made by Bombarding Molybdenum with Deuterons  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
Emilio Segrè and Carlo Perriero  
-  
Discovery
In 1937  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.11 %  
1
Abundance In Sun
0.00 %  
18
0.10 %  
1
Abundance In Meteorites
-  
22.00 %  
1
Abundance In Earth's Crust
0.00 %  
99+
6.30 %  
2
Abundance In Oceans
-  
0.00 %  
12
Abundance In Humans
-  
0.01 %  
6
Uses
Uses & Benefits
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
  • Iron metal alloy steel is used in the application of civil engineering and manufacturing.
  • Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
  
Industrial Uses
-  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Alloys, Nuclear Research, Research Purposes  
Alloys, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Low Toxic  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
447.00 Blood/mg dm-3  
3
In Bone
0.00 p.p.m.  
99+
380.00 p.p.m.  
5
Physical
Melting Point
2,200.00 °C  
9
1,535.00 °C  
25
Boiling Point
4,877.00 °C  
7
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Shiny Gray  
Gray  
Luster
-  
Metallic  
Hardness
  
  
Mohs Hardness
2.25  
16
4.00  
11
Brinell Hardness
550.00 MPa  
27
200.00 MPa  
99+
Vickers Hardness
500.00 MPa  
35
608.00 MPa  
27
Speed of Sound
16,200.00 m/s  
1
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.90  
18
2.60  
4
Reflectivity
35.00 %  
34
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Tc  
Fe  
Isotopes
  
  
Known Isotopes
18  
21
26  
13
Electronegativity
  
  
Pauling Electronegativity
1.90  
12
1.83  
15
Sanderson Electronegativity
1.90  
13
2.20  
8
Allred Rochow Electronegativity
1.36  
21
1.64  
9
Mulliken-Jaffe Electronegativity
1.90  
13
1.83  
16
Allen Electronegativity
1.51  
31
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
2.10  
99+
2.17  
99+
Ionization Energies
  
  
1st Energy Level
702.00 kJ/mol  
36
762.50 kJ/mol  
17
2nd Energy Level
1,470.00 kJ/mol  
99+
1,561.90 kJ/mol  
37
3rd Energy Level
2,850.00 kJ/mol  
34
2,957.00 kJ/mol  
29
4th Energy Level
7,020.00 kJ/mol  
14
5,290.00 kJ/mol  
25
5th Energy Level
7,020.00 kJ/mol  
28
7,240.00 kJ/mol  
25
6th Energy Level
7,020.00 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
4,700.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
4,700.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
7,020.00 kJ/mol  
35
22,540.00 kJ/mol  
5
10th Energy Level
7,020.00 kJ/mol  
39
25,290.00 kJ/mol  
8
11th Energy Level
7,020.00 kJ/mol  
37
28,000.00 kJ/mol  
9
12th Energy Level
7,020.00 kJ/mol  
99+
31,920.00 kJ/mol  
31
13th Energy Level
7,020.00 kJ/mol  
33
34,830.00 kJ/mol  
9
14th Energy Level
7,020.00 kJ/mol  
23
37,840.00 kJ/mol  
11
15th Energy Level
70,200.00 kJ/mol  
29
44,100.00 kJ/mol  
99+
16th Energy Level
70,200.00 kJ/mol  
24
47,206.00 kJ/mol  
99+
17th Energy Level
702.50 kJ/mol  
99+
122,200.00 kJ/mol  
1
18th Energy Level
7,020.00 kJ/mol  
35
131,000.00 kJ/mol  
2
19th Energy Level
702.00 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
702.00 kJ/mol  
35
152,600.00 kJ/mol  
5
21st Energy Level
702.00 kJ/mol  
99+
163,000.00 kJ/mol  
5
22nd Energy Level
702.00 kJ/mol  
29
173,600.00 kJ/mol  
4
23rd Energy Level
702.00 kJ/mol  
99+
188,100.00 kJ/mol  
4
24th Energy Level
702.50 kJ/mol  
28
195,200.00 kJ/mol  
1
25th Energy Level
702.00 kJ/mol  
30
762.00 kJ/mol  
15
26th Energy Level
702.00 kJ/mol  
29
762.50 kJ/mol  
15
27th Energy Level
702.00 kJ/mol  
30
762.50 kJ/mol  
14
28th Energy Level
702.00 kJ/mol  
35
762.50 kJ/mol  
20
29th Energy Level
702.00 kJ/mol  
36
762.50 kJ/mol  
20
30th Energy Level
702.00 kJ/mol  
30
762.00 kJ/mol  
15
Electrochemical Equivalent
0.52 g/amp-hr  
99+
0.69 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.70 eV  
15
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
43  
99+
26  
99+
Electron Configuration
[Kr] 4d5 5s2  
[Ar] 3d6 4s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
43  
99+
26  
99+
Number of Neutrons
55  
99+
30  
99+
Number of Electrons
43  
99+
26  
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm  
99+
126.00 pm  
99+
Covalent Radius
147.00 pm  
39
132.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
98.00 amu  
99+
55.85 amu  
99+
Atomic Volume
8.50 cm3/mol  
99+
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Molybdenum
  
Manganese
  
Next Element
Ruthenium
  
Cobalt
  
Valence Electron Potential
180.00 (-eV)  
3
67.00 (-eV)  
20
Lattice Constant
273.50 pm  
99+
286.65 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.60  
21
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
11.00 g/cm3  
36
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
11.00 g/cm3  
34
6.98 g/cm3  
99+
Tensile Strength
50.00 MPa  
38
11,000.00 MPa  
1
Viscosity
0.00  
25
0.00  
19
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
30
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
27.00 GPa  
34
82.00 GPa  
11
Bulk Modulus
100.00 GPa  
16
170.00 GPa  
10
Young's Modulus
50.00 GPa  
39
211.00 GPa  
9
Poisson Ratio
0.38  
6
0.29  
15
Other Mechanical Properties
-  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
11.50  
37
7.20  
99+
Magnetic Ordering
Paramagnetic  
Ferromagnetic  
Permeability
0.00 H/m  
17
0.01 H/m  
1
Susceptibility
0.00  
24
200,000.00  
1
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
200.00 nΩ·m  
18
96.10 nΩ·m  
32
Electrical Conductivity
0.07 106/cm Ω  
35
0.10 106/cm Ω  
24
Electron Affinity
53.00 kJ/mol  
23
15.70 kJ/mol  
40
Thermal
Specific Heat
0.21 J/(kg K)  
30
0.44 J/(kg K)  
13
Molar Heat Capacity
24.27 J/mol·K  
99+
25.10 J/mol·K  
99+
Thermal Conductivity
50.60 W/m·K  
30
80.40 W/m·K  
22
Critical Temperature
2,150.00 K  
16
1,811.00 K  
29
Thermal Expansion
7.10 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
660.00 kJ/mol  
7
351.00 kJ/mol  
33
Enthalpy of Fusion
23.01 kJ/mol  
9
14.90 kJ/mol  
23
Enthalpy of Atomization
649.00 kJ/mol  
9
414.20 kJ/mol  
24
Standard Molar Entropy
181.10 J/mol.K  
2
27.30 J/mol.K  
99+
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