Technetium Copper Comparison
Periodic Table
Symbol
Tc
Cu
Group Number
7
11
11
7
Period Number
5
4
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440268
99+
7440508
37
Space Group Name
P63/mmc
Fm_ 3m
Space Group Number
194.00
5
225.00
2
Facts
Interesting Facts
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
- Copper rarely found in its pure form in nature.
- Copper Sulfate is mostly used in agricultural poison and as an algicide in water purification system.
Sources
Made by Bombarding Molybdenum with Deuterons
Found in Minerals
History
Who Discovered
Emilio Segrè and Carlo Perriero
Unknown
Discovery
In 1937
In Middle East (9000 BCE)
Abundance
Abundance In Universe
Not Available
6 * 10-6 %
12
Abundance In Sun
~-9999 %
~0.00007 %
12
Abundance In Meteorites
Not Available
0.01 %
13
Abundance In Earth's Crust
Not Available
0.01 %
17
Abundance In Oceans
Not Available
0.00 %
8
Abundance In Humans
Not Available
0.00 %
9
Uses
Uses & Benefits
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
- It is use for coinage and bullion.
- Most of copper element is used in manufacturing electrical and electronic equipments such as wirings and components. It is also used in construction and industrial machine.
Industrial Uses
NA
Chemical Industry, Electronic Industry
Medical Uses
NA
NA
Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys, Coinage, Jewellery
Biological Properties
Toxicity
Low Toxic
Non Toxic
Present in Human Body
No
Yes
In Blood
0.00 Blood/mg dm-3
37
1.01 Blood/mg dm-3
8
In Bone
0.00 p.p.m.
36
26.00 p.p.m.
12
Physical Properties
Melting Point
2,200.00 °C
9
1,084.62 °C
40
Boiling Point
4,877.00 °C
7
2,562.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Shiny Gray
Copper
Luster
NA
NA
Hardness
Mohs Hardness
Not Available
3.00
12
Brinell Hardness
Not Available
235.00 MPa
38
Vickers Hardness
Not Available
343.00 MPa
28
Speed of Sound
16,200.00 m/s
1
3,810.00 m/s
19
Optical Properties
Reflectivity
Not Available
90.00 %
3
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
Cu
Isotopes
Known Isotopes
18
21
29
10
Electronegativity
Pauling Electronegativity
1.90
11
1.90
11
Sanderson Electronegativity
Not Available
1.98
9
Allred Rochow Electronegativity
1.36
20
1.75
3
Mulliken-Jaffe Electronegativity
Not Available
1.49
14
Allen Electronegativity
1.51
28
1.85
9
Electropositivity
Pauling Electropositivity
2.10
99+
2.10
99+
Ionization Energies
1st Energy Level
702.00 kJ/mol
36
745.50 kJ/mol
22
2nd Energy Level
1,470.00 kJ/mol
99+
1,957.90 kJ/mol
15
3rd Energy Level
2,850.00 kJ/mol
33
3,555.00 kJ/mol
15
4th Energy Level
Not Available
5,536.00 kJ/mol
12
5th Energy Level
Not Available
7,700.00 kJ/mol
11
6th Energy Level
Not Available
9,900.00 kJ/mol
10
7th Energy level
Not Available
13,400.00 kJ/mol
7
8th Energy Level
Not Available
16,000.00 kJ/mol
9
9th Energy Level
Not Available
19,200.00 kJ/mol
9
10th Energy Level
Not Available
22,400.00 kJ/mol
11
11th Energy Level
Not Available
25,600.00 kJ/mol
13
12th Energy Level
Not Available
35,600.00 kJ/mol
6
13th Energy Level
Not Available
38,700.00 kJ/mol
6
14th Energy Level
Not Available
42,000.00 kJ/mol
7
15th Energy Level
Not Available
46,700.00 kJ/mol
9
16th Energy Level
Not Available
50,200.00 kJ/mol
10
17th Energy Level
Not Available
53,700.00 kJ/mol
12
18th Energy Level
Not Available
61,100.00 kJ/mol
10
19th Energy Level
Not Available
64,702.00 kJ/mol
11
20th Energy Level
Not Available
163,700.00 kJ/mol
2
21st Energy Level
Not Available
174,100.00 kJ/mol
2
22nd Energy Level
Not Available
184,900.00 kJ/mol
1
23rd Energy Level
Not Available
198,800.00 kJ/mol
1
Electrochemical Equivalent
0.52 g/amp-hr
99+
1.19 g/amp-hr
99+
Electron Work Function
Not Available
4.65 eV
11
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Corrosion, Ionization, Solubility
Atomic Properties
Atomic Number
43
99+
29
99+
Electron Configuration
[Kr] 4d5 5s2
[Ar] 3d10 4s1
Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100
FCC-Crystal-Structure-of-Copper.jpg#100
Atom
Number of Protons
43
99+
29
99+
Number of Neutrons
55
99+
35
99+
Number of Electrons
43
99+
29
99+
Radius of an Atom
Atomic Radius
136.00 pm
99+
128.00 pm
99+
Covalent Radius
147.00 pm
37
132.00 pm
99+
Van der Waals Radius
200.00 pm
28
140.00 pm
99+
Atomic Weight
98.00 amu
99+
63.55 amu
99+
Atomic Volume
8.50 cm3/mol
99+
7.10 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
180.00 (-eV)
3
34.00 (-eV)
99+
Lattice Constant
273.50 pm
99+
361.49 pm
35
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
1.60
5
Not Available
Mechanical Properties
Density
Density At Room Temperature
11.00 g/cm3
34
8.96 g/cm3
99+
Density When Liquid (at m.p.)
Not Available
8.02 g/cm3
27
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
1.53 (Pa)
8
Elasticity properties
Shear Modulus
Not Available
48.00 GPa
15
Bulk Modulus
Not Available
140.00 GPa
12
Young's Modulus
Not Available
120.00 GPa
17
Poisson Ratio
Not Available
0.34
10
Other Mechanical Properties
NA
Ductile, Malleable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
11.50
24
8.89
34
Magnetic Ordering
Paramagnetic
Diamagnetic
Permeability
Not Available
1.256629 * 10-6 H/m
5
Susceptibility
Not Available
-9.63 * 10-6
4
Electrical Properties
Electrical Property
Conductor
Conductor
Resistivity
200.00 nΩ·m
18
16.78 nΩ·m
99+
Electrical Conductivity
0.07 106/cm Ω
30
0.60 106/cm Ω
2
Electron Affinity
53.00 kJ/mol
18
222.80 kJ/mol
1
Thermal Properties
Specific Heat
0.21 J/(kg K)
29
0.38 J/(kg K)
15
Molar Heat Capacity
24.27 J/mol·K
99+
24.44 J/mol·K
99+
Thermal Conductivity
50.60 W/m·K
30
401.00 W/m·K
2
Critical Temperature
Not Available
Not Available
Thermal Expansion
7.10 µm/(m·K)
99+
16.50 µm/(m·K)
25
Enthalpy
Enthalpy of Vaporization
660.00 kJ/mol
6
283.70 kJ/mol
33
Enthalpy of Fusion
23.01 kJ/mol
9
7.11 kJ/mol
99+
Enthalpy of Atomization
649.00 kJ/mol
8
338.90 kJ/mol
29
Standard Molar Entropy
181.10 J/mol.K
2
33.20 J/mol.K
99+
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