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Hassium vs Technetium

Hassium
Technetium
Technetium vs Hassium


Periodic Table
Symbol
Hs  
Tc  
Group Number
8  
10
7  
11
Period Number
7  
5  
Block
d block  
d block  
Element Family
Transition Metal  
Transition Metal  
CAS Number
54037579  
11
7440268  
99+
Space Group Name
-  
P63/mmc  
Space Group Number
166.00  
9
194.00  
7
Facts
Interesting Facts
  • Hassium metals rate of decay is very high.
  • Hassium metals 1st sample was synthesized through a nuclear reaction.
  
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
Sources
Synthetically Produced  
Made by Bombarding Molybdenum with Deuterons  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Emilio Segrè and Carlo Perriero  
Discovery
In 1984  
In 1937  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
40
Abundance In Sun
-  
0.00 %  
18
Abundance In Meteorites
0.00 %  
99+
-  
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
-  
-  
Uses
Uses & Benefits
  • Currently known uses of Hassium metal are limited to research purpose only.
  
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
Industrial Uses
-  
-  
Medical Uses
-  
-  
Other Uses
Research Purposes  
Alloys, Nuclear Research, Research Purposes  
Biological Properties
  
  
Toxicity
-  
Low Toxic  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
-  
2,200.00 °C  
9
Boiling Point
0.00 °C  
99+
4,877.00 °C  
7
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Shiny Gray  
Luster
-  
-  
Hardness
  
  
Mohs Hardness
4.50  
10
2.25  
16
Brinell Hardness
230.00 MPa  
99+
550.00 MPa  
27
Vickers Hardness
2,450.00 MPa  
5
500.00 MPa  
35
Speed of Sound
2,760.00 m/s  
99+
16,200.00 m/s  
1
Optical Properties
  
  
Refractive Index
1.30  
99+
1.90  
18
Reflectivity
69.00 %  
14
35.00 %  
34
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Hs  
Tc  
Isotopes
  
  
Known Isotopes
7  
31
18  
21
Electronegativity
  
  
Pauling Electronegativity
2.20  
5
1.90  
12
Sanderson Electronegativity
1.30  
25
1.90  
13
Allred Rochow Electronegativity
1.30  
25
1.36  
21
Mulliken-Jaffe Electronegativity
1.30  
33
1.90  
13
Allen Electronegativity
1.30  
40
1.51  
31
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.10  
99+
Ionization Energies
  
  
1st Energy Level
733.30 kJ/mol  
26
702.00 kJ/mol  
36
2nd Energy Level
1,756.00 kJ/mol  
25
1,470.00 kJ/mol  
99+
3rd Energy Level
2,827.00 kJ/mol  
37
2,850.00 kJ/mol  
34
4th Energy Level
3,637.50 kJ/mol  
99+
7,020.00 kJ/mol  
14
5th Energy Level
4,940.00 kJ/mol  
99+
7,020.00 kJ/mol  
28
6th Energy Level
6,175.10 kJ/mol  
99+
7,020.00 kJ/mol  
99+
7th Energy level
7,535.50 kJ/mol  
32
4,700.00 kJ/mol  
99+
8th Energy Level
8,857.40 kJ/mol  
21
4,700.00 kJ/mol  
99+
9th Energy Level
5,400.00 kJ/mol  
99+
7,020.00 kJ/mol  
35
10th Energy Level
6,100.00 kJ/mol  
99+
7,020.00 kJ/mol  
39
11th Energy Level
6,100.00 kJ/mol  
99+
7,020.00 kJ/mol  
37
12th Energy Level
3,500.00 kJ/mol  
99+
7,020.00 kJ/mol  
99+
13th Energy Level
4,200.00 kJ/mol  
99+
7,020.00 kJ/mol  
33
14th Energy Level
1,124.00 kJ/mol  
99+
7,020.00 kJ/mol  
23
15th Energy Level
68,200.00 kJ/mol  
31
70,200.00 kJ/mol  
29
16th Energy Level
32,800.00 kJ/mol  
99+
70,200.00 kJ/mol  
24
17th Energy Level
1,089.00 kJ/mol  
22
702.50 kJ/mol  
99+
18th Energy Level
3,300.00 kJ/mol  
99+
7,020.00 kJ/mol  
35
19th Energy Level
1,086.50 kJ/mol  
19
702.00 kJ/mol  
99+
20th Energy Level
880.00 kJ/mol  
14
702.00 kJ/mol  
35
21st Energy Level
1,086.00 kJ/mol  
30
702.00 kJ/mol  
99+
22nd Energy Level
350.00 kJ/mol  
99+
702.00 kJ/mol  
29
23rd Energy Level
1,120.00 kJ/mol  
34
702.00 kJ/mol  
99+
24th Energy Level
540.90 kJ/mol  
99+
702.50 kJ/mol  
28
25th Energy Level
610.00 kJ/mol  
99+
702.00 kJ/mol  
30
26th Energy Level
587.40 kJ/mol  
99+
702.00 kJ/mol  
29
27th Energy Level
880.00 kJ/mol  
5
702.00 kJ/mol  
30
28th Energy Level
840.00 kJ/mol  
14
702.00 kJ/mol  
35
29th Energy Level
867.80 kJ/mol  
11
702.00 kJ/mol  
36
30th Energy Level
0.00 kJ/mol  
99+
702.00 kJ/mol  
30
Electrochemical Equivalent
3.00 g/amp-hr  
21
0.52 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.90 eV  
12
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Atomic
Atomic Number
108  
10
43  
99+
Electron Configuration
[Rn] 5f14 6d6 7s2  
[Kr] 4d5 5s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
HCP-Crystal-Structure-of-Technetium.jpg#100  
Atom
  
  
Number of Protons
108  
10
43  
99+
Number of Neutrons
158  
7
55  
99+
Number of Electrons
108  
10
43  
99+
Radius of an Atom
  
  
Atomic Radius
126.00 pm  
99+
136.00 pm  
99+
Covalent Radius
134.00 pm  
99+
147.00 pm  
39
Van der Waals Radius
0.00 pm  
99+
200.00 pm  
35
Atomic Weight
269.00 amu  
9
98.00 amu  
99+
Atomic Volume
22.70 cm3/mol  
18
8.50 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Bohrium
  
Molybdenum
  
Next Element
Meitnerium
  
Ruthenium
  
Valence Electron Potential
0.00 (-eV)  
99+
180.00 (-eV)  
3
Lattice Constant
-  
273.50 pm  
99+
Lattice Angles
-  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.31  
99+
1.60  
21
Mechanical
Density
  
  
Density At Room Temperature
40.70 g/cm3  
1
11.00 g/cm3  
36
Density When Liquid (at m.p.)
41.00 g/cm3  
1
11.00 g/cm3  
34
Tensile Strength
80.00 MPa  
29
50.00 MPa  
38
Viscosity
0.00  
27
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
40.00 GPa  
19
27.00 GPa  
34
Bulk Modulus
40.00 GPa  
38
100.00 GPa  
16
Young's Modulus
40.00 GPa  
99+
50.00 GPa  
39
Poisson Ratio
0.34  
10
0.38  
6
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
41.00  
2
11.50  
37
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
8
0.00 H/m  
17
Susceptibility
0.00  
25
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
41.00 nΩ·m  
99+
200.00 nΩ·m  
18
Electrical Conductivity
0.00 106/cm Ω  
99+
0.07 106/cm Ω  
35
Electron Affinity
63.20 kJ/mol  
19
53.00 kJ/mol  
23
Thermal
Specific Heat
0.13 J/(kg K)  
99+
0.21 J/(kg K)  
30
Molar Heat Capacity
25.92 J/mol·K  
99+
24.27 J/mol·K  
99+
Thermal Conductivity
0.00 W/m·K  
99+
50.60 W/m·K  
30
Critical Temperature
1,323.00 K  
99+
2,150.00 K  
16
Thermal Expansion
21.20 µm/(m·K)  
23
7.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
126.00 kJ/mol  
99+
660.00 kJ/mol  
7
Enthalpy of Fusion
-  
23.01 kJ/mol  
9
Enthalpy of Atomization
-  
649.00 kJ/mol  
9
Standard Molar Entropy
57.20 J/mol.K  
29
181.10 J/mol.K  
2
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