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Uranium vs Technetium

Uranium
Technetium
Technetium vs Uranium


Periodic Table
Symbol
U  
Tc  
Group Number
0  
18
7  
11
Period Number
7  
5  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440611  
28
7440268  
99+
Space Group Name
Cmcm  
P63/mmc  
Space Group Number
63.00  
13
194.00  
7
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
Sources
Earth's crust, Mining, Ores of Minerals  
Made by Bombarding Molybdenum with Deuterons  
History
  
  
Who Discovered
-  
Emilio Segrè and Carlo Perriero  
Discovery
In 1789  
In 1937  
Abundance
  
  
Abundance In Universe
0.00 %  
30
0.00 %  
40
Abundance In Sun
0.00 %  
26
0.00 %  
18
Abundance In Meteorites
0.00 %  
99+
-  
Abundance In Earth's Crust
0.00 %  
36
0.00 %  
99+
Abundance In Oceans
0.00 %  
11
-  
Abundance In Humans
0.00 %  
24
-  
Uses
Uses & Benefits
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Alloys, Nuclear Research, Research Purposes  
Biological Properties
  
  
Toxicity
Toxic  
Low Toxic  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
40
In Bone
1.20 p.p.m.  
19
0.00 p.p.m.  
99+
Physical
Melting Point
1,132.00 °C  
39
2,200.00 °C  
9
Boiling Point
3,818.00 °C  
16
4,877.00 °C  
7
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Shiny Gray  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
6.00  
6
2.25  
16
Brinell Hardness
2,350.00 MPa  
2
550.00 MPa  
27
Vickers Hardness
1,960.00 MPa  
6
500.00 MPa  
35
Speed of Sound
3,155.00 m/s  
36
16,200.00 m/s  
1
Optical Properties
  
  
Refractive Index
1.38  
40
1.90  
18
Reflectivity
80.00 %  
7
35.00 %  
34
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
U  
Tc  
Isotopes
  
  
Known Isotopes
25  
14
18  
21
Electronegativity
  
  
Pauling Electronegativity
1.38  
29
1.90  
12
Sanderson Electronegativity
1.38  
22
1.90  
13
Allred Rochow Electronegativity
1.22  
27
1.36  
21
Mulliken-Jaffe Electronegativity
1.38  
29
1.90  
13
Allen Electronegativity
1.38  
36
1.51  
31
Electropositivity
  
  
Pauling Electropositivity
2.62  
26
2.10  
99+
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
36
2nd Energy Level
1,420.00 kJ/mol  
99+
1,470.00 kJ/mol  
99+
3rd Energy Level
1,900.00 kJ/mol  
99+
2,850.00 kJ/mol  
34
4th Energy Level
3,145.00 kJ/mol  
99+
7,020.00 kJ/mol  
14
5th Energy Level
5,976.00 kJ/mol  
99+
7,020.00 kJ/mol  
28
6th Energy Level
5,976.00 kJ/mol  
99+
7,020.00 kJ/mol  
99+
7th Energy level
5,970.00 kJ/mol  
99+
4,700.00 kJ/mol  
99+
8th Energy Level
5,976.00 kJ/mol  
99+
4,700.00 kJ/mol  
99+
9th Energy Level
5,976.00 kJ/mol  
99+
7,020.00 kJ/mol  
35
10th Energy Level
5,976.00 kJ/mol  
99+
7,020.00 kJ/mol  
39
11th Energy Level
5,976.00 kJ/mol  
99+
7,020.00 kJ/mol  
37
12th Energy Level
5,970.00 kJ/mol  
99+
7,020.00 kJ/mol  
99+
13th Energy Level
5,970.00 kJ/mol  
99+
7,020.00 kJ/mol  
33
14th Energy Level
5,970.00 kJ/mol  
34
7,020.00 kJ/mol  
23
15th Energy Level
59,700.00 kJ/mol  
99+
70,200.00 kJ/mol  
29
16th Energy Level
59,700.00 kJ/mol  
35
70,200.00 kJ/mol  
24
17th Energy Level
597.60 kJ/mol  
99+
702.50 kJ/mol  
99+
18th Energy Level
5,976.00 kJ/mol  
99+
7,020.00 kJ/mol  
35
19th Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
99+
20th Energy Level
597.00 kJ/mol  
99+
702.00 kJ/mol  
35
21st Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
99+
22nd Energy Level
597.00 kJ/mol  
99+
702.00 kJ/mol  
29
23rd Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
99+
24th Energy Level
597.60 kJ/mol  
99+
702.50 kJ/mol  
28
25th Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
30
26th Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
29
27th Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
30
28th Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
35
29th Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
36
30th Energy Level
597.60 kJ/mol  
99+
702.00 kJ/mol  
30
Electrochemical Equivalent
1.48 g/amp-hr  
99+
0.52 g/amp-hr  
99+
Electron Work Function
3.63 eV  
99+
4.90 eV  
12
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
92  
26
43  
99+
Electron Configuration
[Rn] 5f3 6d1 7s2  
[Kr] 4d5 5s2  
Crystal Structure
Orthorhombic (ORTH)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
HCP-Crystal-Structure-of-Technetium.jpg#100  
Atom
  
  
Number of Protons
92  
26
43  
99+
Number of Neutrons
146  
14
55  
99+
Number of Electrons
92  
26
43  
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm  
31
136.00 pm  
99+
Covalent Radius
196.00 pm  
14
147.00 pm  
39
Van der Waals Radius
186.00 pm  
40
200.00 pm  
35
Atomic Weight
238.03 amu  
21
98.00 amu  
99+
Atomic Volume
12.59 cm3/mol  
99+
8.50 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Molybdenum
  
Next Element
Neptunium
  
Ruthenium
  
Valence Electron Potential
170.00 (-eV)  
4
180.00 (-eV)  
3
Lattice Constant
295.08 pm  
99+
273.50 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.02  
99+
1.60  
21
Mechanical
Density
  
  
Density At Room Temperature
19.10 g/cm3  
17
11.00 g/cm3  
36
Density When Liquid (at m.p.)
17.30 g/cm3  
17
11.00 g/cm3  
34
Tensile Strength
100.00 MPa  
28
50.00 MPa  
38
Viscosity
0.00  
21
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.01 (Pa)  
20
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
111.00 GPa  
10
27.00 GPa  
34
Bulk Modulus
100.00 GPa  
16
100.00 GPa  
16
Young's Modulus
208.00 GPa  
11
50.00 GPa  
39
Poisson Ratio
0.23  
30
0.38  
6
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
18.80  
19
11.50  
37
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
17
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Poor Conductor  
Conductor  
Resistivity
0.28 nΩ·m  
99+
200.00 nΩ·m  
18
Electrical Conductivity
0.04 106/cm Ω  
99+
0.07 106/cm Ω  
35
Electron Affinity
50.60 kJ/mol  
25
53.00 kJ/mol  
23
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.21 J/(kg K)  
30
Molar Heat Capacity
27.67 J/mol·K  
18
24.27 J/mol·K  
99+
Thermal Conductivity
27.50 W/m·K  
99+
50.60 W/m·K  
30
Critical Temperature
1,405.00 K  
99+
2,150.00 K  
16
Thermal Expansion
13.90 µm/(m·K)  
30
7.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol  
18
660.00 kJ/mol  
7
Enthalpy of Fusion
15.48 kJ/mol  
19
23.01 kJ/mol  
9
Enthalpy of Atomization
489.50 kJ/mol  
18
649.00 kJ/mol  
9
Standard Molar Entropy
50.20 J/mol.K  
99+
181.10 J/mol.K  
2
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