Symbol
Rf
  
Tc
  
Period Number
7
  
5
  
Block
d block
  
d block
  
Element Family
Transition Metal
  
Transition Metal
  
Space Group Name
Not Available
  
P63/mmc
  
Space Group Number
Not Available
  
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 & 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
Melting Point
2,100.00 °C
  
11
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 Formula
Rf
  
Tc
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
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
  
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
  
  
Radius of an Atom
  
  
Van der Waals Radius
Not Available
  
Atomic Volume
Not Available
  
8.50 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
180.00 (-eV)
  
3
Lattice Constant
Not Available
  
Lattice Angles
NA
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Density
  
  
Density At Room Temperature
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 Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Unknown
  
Paramagnetic
  
Electrical Properties
  
  
Electrical Property
Unknown
  
Conductor
  
Resistivity
Not Available
  
200.00 nΩ·m
  
18
Electrical Conductivity
Not Available
  
0.07 10
6/cm Ω
  
30
Electron Affinity
Not Available
  
53.00 kJ/mol
  
18
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