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Technetium Seaborgium Comparison


Seaborgium Technetium comparison


Periodic Table

Symbol
Tc   
Sg   

Group Number
7   
11
6   
12

Period Number
5   
7   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
7440268   
99+
54038812   
9

Space Group Name
P63/mmc   
Not Available   

Space Group Number
194.00   
5
Not Available   

Facts

Interesting Facts
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  
  • Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
  • And other isotopes of Seaborgium have half-lives as short as 3 ms.
  

Sources
Made by Bombarding Molybdenum with Deuterons   
Synthetically Produced   

History
  
  

Who Discovered
Emilio Segrè and Carlo Perriero   
Lawrence Berkeley National Laboratory   

Discovery
In 1937   
In 1974   

Abundance
  
  

Uses

Uses & Benefits
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
  
  • Currently known uses of Seaborgium metal are limited to research purpose only.
  

Industrial Uses
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys, Nuclear Research, Research Purposes   
Research Purposes   

Biological Properties
  
  

Toxicity
Low Toxic   
Unknown   

Present in Human Body
No   
No   

In Blood
0.00 Blood/mg dm-3   
37
Not Available   

In Bone
0.00 p.p.m.   
36
Not Available   

Physical Properties

Melting Point
2,200.00 °C   
9
Not Available   

Boiling Point
4,877.00 °C   
7
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Color
Shiny Gray   
Unknown   

Luster
NA   
Unknown Luster   

Hardness
  
  

Speed of Sound
16,200.00 m/s   
1
Not Available   

Optical Properties
  
  

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Tc   
Sg   

Isotopes
  
  

Known Isotopes
18   
21
9   
29

Electronegativity
  
  

Pauling Electronegativity
1.90   
11
Not Available   

Allred Rochow Electronegativity
1.36   
20
Not Available   

Allen Electronegativity
1.51   
28
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.10   
99+
Not Available   

Ionization Energies
  
  

1st Energy Level
702.00 kJ/mol   
36
757.40 kJ/mol   
21

2nd Energy Level
1,470.00 kJ/mol   
99+
1,732.90 kJ/mol   
28

3rd Energy Level
2,850.00 kJ/mol   
33
2,483.50 kJ/mol   
99+

4th Energy Level
Not Available   
3,415.60 kJ/mol   
99+

5th Energy Level
Not Available   
4,561.80 kJ/mol   
38

6th Energy Level
Not Available   
5,715.80 kJ/mol   
25

Electrochemical Equivalent
0.52 g/amp-hr   
99+
Not Available   

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
NA   

Atomic Properties

Atomic Number
43   
99+
106   
12

Electron Configuration
[Kr] 4d5 5s2   
[Rn] 5f14 6d2 7s2   

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+
106   
12

Number of Neutrons
55   
99+
157   
7

Number of Electrons
43   
99+
106   
12

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
132.00 pm   
99+

Covalent Radius
147.00 pm   
37
143.00 pm   
99+

Van der Waals Radius
200.00 pm   
28
Not Available   

Atomic Weight
98.00 amu   
99+
269.00 amu   
9

Atomic Volume
8.50 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Molybdenum
  
Dubnium
  

Next Element
Ruthenium
  
Bohrium
  

Valence Electron Potential
180.00 (-eV)   
3
Not Available   

Lattice Constant
273.50 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, 2 π/3   
Unknown   

Lattice C/A Ratio
1.60   
5
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
11.00 g/cm3   
34
35.00 g/cm3   
4

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Poisson Ratio
Not Available   
Not Available   

Other Mechanical Properties
NA   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
11.50   
24
Not Available   

Magnetic Ordering
Paramagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
200.00 nΩ·m   
18
Not Available   

Electrical Conductivity
0.07 106/cm Ω   
30
Not Available   

Electron Affinity
53.00 kJ/mol   
18
Not Available   

Thermal Properties

Specific Heat
0.21 J/(kg K)   
29
Not Available   

Molar Heat Capacity
24.27 J/mol·K   
99+
Not Available   

Thermal Conductivity
50.60 W/m·K   
30
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
7.10 µm/(m·K)   
99+
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
660.00 kJ/mol   
6
Not Available   

Enthalpy of Fusion
23.01 kJ/mol   
9
Not Available   

Enthalpy of Atomization
649.00 kJ/mol   
8
Not Available   

Standard Molar Entropy
181.10 J/mol.K   
2
Not Available   

Summary >>
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