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Rutherfordium vs Technetium


Technetium vs Rutherfordium


Periodic Table

Symbol
Rf   
Tc   

Group Number
4   
14
7   
11

Period Number
7   
5   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
53850365   
13
7440268   
99+

Space Group Name
Not Available   
P63/mmc   

Space Group Number
Not Available   
194.00   
5

Facts

Interesting Facts
  • Rutherfordium does not occur in nature as it is a synthetic element.
  • Till date Rutherfordium metal has 15 radioisotopes created synthetically.
  
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
  

Sources
Bombarding Plutonium with Accelerated 113 to 115 MeV Neon Ions, Synthetically Produced   
Made by Bombarding Molybdenum with Deuterons   

History
  
  

Who Discovered
Joint Institute for Nuclear Research   
Emilio Segrè and Carlo Perriero   

Discovery
In 1964   
In 1937   

Abundance
  
  

Uses

Uses & Benefits
  • Currently known uses of Rutherfordium 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
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys, Research Purposes   
Alloys, Nuclear Research, Research Purposes   

Biological Properties
  
  

Toxicity
Unknown   
Low Toxic   

Present in Human Body
No   
No   

In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
37

In Bone
0.00 p.p.m.   
36
0.00 p.p.m.   
36

Physical Properties

Melting Point
2,100.00 °C   
11
2,200.00 °C   
9

Boiling Point
5,500.00 °C   
3
4,877.00 °C   
7

Appearance
  
  

Physical State
Solid   
Solid   

Color
Unknown   
Shiny Gray   

Luster
Unknown Luster   
NA   

Hardness
  
  

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

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
Rf   
Tc   

Isotopes
  
  

Known Isotopes
13   
26
18   
21

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.90   
11

Allred Rochow Electronegativity
Not Available   
1.36   
20

Allen Electronegativity
Not Available   
1.51   
28

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.10   
99+

Ionization Energies
  
  

1st Energy Level
579.90 kJ/mol   
99+
702.00 kJ/mol   
36

2nd Energy Level
1,389.40 kJ/mol   
99+
1,470.00 kJ/mol   
99+

3rd Energy Level
2,296.40 kJ/mol   
99+
2,850.00 kJ/mol   
33

4th Energy Level
3,077.90 kJ/mol   
99+
Not Available   

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

Electron Work Function
Not Available   
Not Available   

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

Atomic Properties

Atomic Number
104   
14
43   
99+

Electron Configuration
[Rn] 5f14 6d2 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
104   
14
43   
99+

Number of Neutrons
157   
7
55   
99+

Number of Electrons
104   
14
43   
99+

Radius of an Atom
  
  

Atomic Radius
150.00 pm   
33
136.00 pm   
99+

Covalent Radius
157.00 pm   
31
147.00 pm   
37

Van der Waals Radius
Not Available   
200.00 pm   
28

Atomic Weight
267.00 amu   
11
98.00 amu   
99+

Atomic Volume
Not Available   
8.50 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Lawrencium
  
Molybdenum
  

Next Element
Dubnium
  
Ruthenium
  

Valence Electron Potential
Not Available   
180.00 (-eV)   
3

Lattice Constant
Not Available   
273.50 pm   
99+

Lattice Angles
NA   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.60   
5

Mechanical Properties

Density
  
  

Density At Room Temperature
23.20 g/cm3   
8
11.00 g/cm3   
34

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Elasticity properties
  
  

Poisson Ratio
Not Available   
Not Available   

Other Mechanical Properties
Unknown   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
Not Available   
11.50   
24

Magnetic Ordering
Unknown   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Conductor   

Resistivity
Not Available   
200.00 nΩ·m   
18

Electrical Conductivity
Not Available   
0.07 106/cm Ω   
30

Electron Affinity
Not Available   
53.00 kJ/mol   
18

Thermal Properties

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

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

Thermal Conductivity
Not Available   
50.60 W/m·K   
30

Critical Temperature
Not Available   
Not Available   

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

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
660.00 kJ/mol   
6

Enthalpy of Fusion
Not Available   
23.01 kJ/mol   
9

Enthalpy of Atomization
Not Available   
649.00 kJ/mol   
8

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

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