Technetium vs Copernicium
Periodic Table
Symbol
Tc
Cn
Group Number
7
11
12
6
Period Number
5
7
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440268
99+
54084263
7
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.
Not Available
Sources
Made by Bombarding Molybdenum with Deuterons
Synthetically Produced
History
Who Discovered
Emilio Segrè and Carlo Perriero
Gesellschaft für Schwerionenforschung
Discovery
In 1937
In 1996
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 Copernicium 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
Cn
Isotopes
Known Isotopes
18
21
1
34
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
1,154.90 kJ/mol
2
2nd Energy Level
1,470.00 kJ/mol
99+
2,170.00 kJ/mol
9
3rd Energy Level
2,850.00 kJ/mol
33
4,245.40 kJ/mol
9
4th Energy Level
Not Available
5,499.70 kJ/mol
14
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
Ionization, Radioactive Isotopes, Radioactivity
Atomic Properties
Atomic Number
43
99+
112
6
Electron Configuration
[Kr] 4d5 5s2
[Rn] 5f14 6d10 7s2
Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
43
99+
112
6
Number of Neutrons
55
99+
Not Available
Number of Electrons
43
99+
112
6
Radius of an Atom
Atomic Radius
136.00 pm
99+
147.00 pm
34
Covalent Radius
147.00 pm
37
122.00 pm
99+
Van der Waals Radius
200.00 pm
28
Not Available
Atomic Weight
98.00 amu
99+
285.00 amu
5
Atomic Volume
8.50 cm3/mol
99+
Not Available
Adjacent Atomic Numbers
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
NA
Lattice C/A Ratio
1.60
5
Not Available
Mechanical Properties
Density
Density At Room Temperature
11.00 g/cm3
34
23.70 g/cm3
7
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
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