1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
Actinide
Transition Metal
1.7 CAS Number
225371957440268
7429905
54386242
1.8 Space Group Name
1.9 Space Group Number
2 Facts
2.1 Interesting Facts
- It is synthetically produced metal.
- Radiation hazard can be produce by it.
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
2.2 Sources
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining
Made by Bombarding Molybdenum with Deuterons
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research
Emilio Segrè and Carlo Perriero
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.5.1 Abundance In Sun
~-9999 %~-9999 %
1E-08
0.1
2.5.2 Abundance In Meteorites
2.7.1 Abundance In Earth's Crust
2.9.1 Abundance In Oceans
3.1.2 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- Currently known uses of Lawrencium metal are limited to research purpose only.
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
4.1.1 Industrial Uses
4.1.2 Medical Uses
4.1.3 Other Uses
NA
Alloys, Nuclear Research, Research Purposes
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
4.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
4.2.5 In Bone
0.00 p.p.m.0.00 p.p.m.
0
170000
5 Physical
5.1 Melting Point
1,627.00 °C2,200.00 °C
27
3410
5.4 Boiling Point
5.6 Appearance
5.6.1 Physical State
5.6.2 Color
5.6.3 Luster
5.7 Hardness
5.7.1 Mohs Hardness
5.7.3 Brinell Hardness
5.8.2 Vickers Hardness
5.9 Speed of Sound
NA16,200.00 m/s
818
16200
5.10 Optical Properties
5.10.1 Refractive Index
5.10.3 Reflectivity
5.11 Allotropes
5.11.1 α Allotropes
Not Available
Not Available
5.11.2 β Allotropes
Not Available
Not Available
5.11.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
6.2 Isotopes
6.2.1 Known Isotopes
6.4 Electronegativity
6.4.1 Pauling Electronegativity
7.1.2 Sanderson Electronegativity
7.1.5 Allred Rochow Electronegativity
7.1.7 Mulliken-Jaffe Electronegativity
7.2.3 Allen Electronegativity
7.3 Electropositivity
7.3.1 Pauling Electropositivity
7.4 Ionization Energies
7.4.1 1st Energy Level
470.00 kJ/mol702.00 kJ/mol
375.7
26130
7.4.3 2nd Energy Level
1,428.00 kJ/mol1,470.00 kJ/mol
710.2162
28750
7.4.4 3rd Energy Level
2,228.00 kJ/mol2,850.00 kJ/mol
1600
34230
8.1.1 4th Energy Level
4,910.00 kJ/molNA
2780
37066
8.2.1 5th Energy Level
8.3.1 6th Energy Level
8.3.2 7th Energy level
8.4.1 8th Energy Level
8.5.1 9th Energy Level
8.5.2 10th Energy Level
8.6.2 11th Energy Level
8.6.4 12th Energy Level
8.6.5 13th Energy Level
8.6.7 14th Energy Level
8.7.1 15th Energy Level
8.7.2 16th Energy Level
8.7.3 17th Energy Level
8.7.4 18th Energy Level
8.7.5 19th Energy Level
8.7.6 20th Energy Level
8.7.7 21st Energy Level
8.7.8 22nd Energy Level
8.7.9 23rd Energy Level
8.7.10 24th Energy Level
8.7.11 25th Energy Level
8.7.12 26th Energy Level
8.7.13 27th Energy Level
8.7.14 28th Energy Level
8.7.15 29th Energy Level
8.7.16 30th Energy Level
8.8 Electrochemical Equivalent
3.23 g/amp-hr0.52 g/amp-hr
0.16812
8.3209
8.9 Electron Work Function
8.10 Other Chemical Properties
Ionization, Radioactive Isotopes
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
9 Atomic
9.1 Atomic Number
9.2 Electron Configuration
[Rn] 5f14 7s2 7p1
[Kr] 4d5 5s2
9.3 Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
9.4.2 Number of Neutrons
9.4.3 Number of Electrons
9.5 Radius of an Atom
9.5.1 Atomic Radius
9.5.2 Covalent Radius
9.5.3 Van der Waals Radius
246.00 pm200.00 pm
139
348
9.6 Atomic Weight
266.00 amu98.00 amu
6.94
294
9.7 Atomic Volume
NA8.50 cm3/mol
1.39
71.07
9.8 Adjacent Atomic Numbers
9.8.1 Previous Element
9.8.2 Next Element
9.9 Valence Electron Potential
9.10 Lattice Constant
NA273.50 pm
228.58
891.25
9.11 Lattice Angles
9.12 Lattice C/A Ratio
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
10.1.2 Density When Liquid (at m.p.)
10.2 Tensile Strength
10.3 Viscosity
10.4 Vapor Pressure
10.4.1 Vapor Pressure at 1000 K
10.4.2 Vapor Pressure at 2000 K
10.5 Elasticity properties
10.5.1 Shear Modulus
10.5.2 Bulk Modulus
10.5.3 Young's Modulus
10.6 Poisson Ratio
10.7 Other Mechanical Properties
11 Magnetic
11.1 Magnetic Characteristics
11.1.1 Specific Gravity
11.1.2 Magnetic Ordering
11.1.3 Permeability
11.1.4 Susceptibility
11.2 Electrical Properties
11.2.1 Electrical Property
11.2.2 Resistivity
11.2.3 Electrical Conductivity
NA0.07 106/cm Ω
0.00666
0.63
11.2.4 Electron Affinity
12 Thermal
12.1 Specific Heat
12.2 Molar Heat Capacity
NA24.27 J/mol·K
16.443
62.7
12.3 Thermal Conductivity
12.4 Critical Temperature
12.5 Thermal Expansion
12.6 Enthalpy
12.6.1 Enthalpy of Vaporization
NA660.00 kJ/mol
7.32
799.1
12.6.2 Enthalpy of Fusion
12.6.3 Enthalpy of Atomization
1.2 Standard Molar Entropy
NA181.10 J/mol.K
9.5
198.1