1 Periodic Table
1.1 Symbol
1.2 Group Number
3.4 Period Number
3.5 Block
3.6 Element Family
Transition Metal
Transition Metal
3.7 CAS Number
74402687440484
7429905
54386242
3.10 Space Group Name
3.11 Space Group Number
5 Facts
5.1 Interesting Facts
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
- The main source of Cobalt is as a by-product of copper and nickel metal mining.
- Cobalt metal can be obtained from other elements like Oxygen, Sulfur and Arsenic.
- It s also used in electroplating process as it exhibits anti cession properties.
5.2 Sources
Made by Bombarding Molybdenum with Deuterons
Found in Compounds, Mining, Ores of Minerals
5.3 History
5.3.1 Who Discovered
Emilio Segrè and Carlo Perriero
Georg Brandt
5.3.2 Discovery
5.4 Abundance
5.4.1 Abundance In Universe
5.7.2 Abundance In Sun
~-9999 %~0.0004 %
1E-08
0.1
5.10.2 Abundance In Meteorites
5.11.2 Abundance In Earth's Crust
6.2.2 Abundance In Oceans
6.2.5 Abundance In Humans
7 Uses
7.1 Uses & Benefits
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
- Its alloys with aluminum and nickel are used to make powerful magnets.
-
Few other alloys exhibit high-temperature strength and hence they are used in Turbines of Jet and Gas engine.
7.1.1 Industrial Uses
NA
Chemical Industry, Electrical Industry, Electronic Industry
7.1.2 Medical Uses
NA
Pharmaceutical Industry
7.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
7.2 Biological Properties
7.2.1 Toxicity
7.2.2 Present in Human Body
7.2.3 In Blood
0.00 Blood/mg dm-30.04 Blood/mg dm-3
0
1970
7.3.2 In Bone
0.00 p.p.m.0.04 p.p.m.
0
170000
8 Physical
8.1 Melting Point
2,200.00 °C1,495.00 °C
27
3410
10.2 Boiling Point
4,877.00 °C2,870.00 °C
147
5660
10.5 Appearance
10.5.1 Physical State
10.5.2 Color
10.5.3 Luster
10.6 Hardness
10.6.1 Mohs Hardness
10.7.2 Brinell Hardness
10.8.4 Vickers Hardness
10.9 Speed of Sound
16,200.00 m/s4,720.00 m/s
818
16200
10.10 Optical Properties
10.10.1 Refractive Index
10.10.3 Reflectivity
10.12 Allotropes
10.12.1 α Allotropes
10.12.2 β Allotropes
10.12.3 γ Allotropes
Not Available
Not Available
11 Chemical
11.1 Chemical Formula
11.2 Isotopes
11.2.1 Known Isotopes
12.2 Electronegativity
12.2.1 Pauling Electronegativity
12.3.1 Sanderson Electronegativity
12.4.2 Allred Rochow Electronegativity
12.4.5 Mulliken-Jaffe Electronegativity
12.5.1 Allen Electronegativity
12.7 Electropositivity
12.7.1 Pauling Electropositivity
12.8 Ionization Energies
12.8.1 1st Energy Level
702.00 kJ/mol760.40 kJ/mol
375.7
26130
12.9.2 2nd Energy Level
1,470.00 kJ/mol1,648.00 kJ/mol
710.2162
28750
12.9.5 3rd Energy Level
2,850.00 kJ/mol3,232.00 kJ/mol
1600
34230
12.9.9 4th Energy Level
NA4,950.00 kJ/mol
2780
37066
12.9.14 5th Energy Level
NA7,670.00 kJ/mol
4305.2
97510
12.9.17 6th Energy Level
NA9,840.00 kJ/mol
5715.8
105800
12.10.2 7th Energy level
NA12,440.00 kJ/mol
7226.8
114300
12.10.5 8th Energy Level
NA15,230.00 kJ/mol
8857.4
125300
12.10.8 9th Energy Level
NA17,959.00 kJ/mol
14110
134700
12.10.10 10th Energy Level
NA26,570.00 kJ/mol
17100
144300
12.10.14 11th Energy Level
NA29,400.00 kJ/mol
19900
169988
12.10.17 12th Energy Level
NA32,400.00 kJ/mol
22219
189368
12.10.21 13th Energy Level
NA36,600.00 kJ/mol
26930
76015
1.2.3 14th Energy Level
NA39,700.00 kJ/mol
29196
86450
1.4.1 15th Energy Level
NA42,800.00 kJ/mol
41987
97510
1.7.1 16th Energy Level
NA49,396.00 kJ/mol
47206
109480
1.8.2 17th Energy Level
NA52,737.00 kJ/mol
52737
122200
2.1.1 18th Energy Level
NA134,810.00 kJ/mol
58570
134810
2.1.3 19th Energy Level
NA145,170.00 kJ/mol
64702
148700
2.4.2 20th Energy Level
NA154,700.00 kJ/mol
80400
171200
2.4.4 21st Energy Level
NA167,400.00 kJ/mol
87000
179100
2.4.7 22nd Energy Level
NA178,100.00 kJ/mol
93400
184900
2.4.9 23rd Energy Level
NA189,300.00 kJ/mol
98420
198800
2.4.12 24th Energy Level
2.5.2 25th Energy Level
2.6.1 26th Energy Level
2.6.3 27th Energy Level
2.7.1 28th Energy Level
2.8.1 29th Energy Level
3.1.1 30th Energy Level
3.3 Electrochemical Equivalent
0.52 g/amp-hr1.10 g/amp-hr
0.16812
8.3209
3.9 Electron Work Function
3.11 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Ionization
4 Atomic
4.1 Atomic Number
4.4 Electron Configuration
[Kr] 4d5 5s2
[Ar] 3d2 4s2
4.5 Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
5.1.2 Crystal Lattice
5.2 Atom
5.2.1 Number of Protons
5.3.3 Number of Neutrons
5.5.1 Number of Electrons
5.8 Radius of an Atom
5.8.1 Atomic Radius
136.00 pm147.00 pm
112
265
5.8.3 Covalent Radius
147.00 pm160.00 pm
96
260
5.10.2 Van der Waals Radius
200.00 pm200.00 pm
139
348
5.13 Atomic Weight
98.00 amu47.87 amu
6.94
294
5.17 Atomic Volume
8.50 cm3/mol10.64 cm3/mol
1.39
71.07
6.3 Adjacent Atomic Numbers
6.3.1 Previous Element
6.3.2 Next Element
6.4 Valence Electron Potential
180.00 (-eV)95.20 (-eV)
8
392.42
7.2 Lattice Constant
273.50 pm295.08 pm
228.58
891.25
7.5 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
7.6 Lattice C/A Ratio
8 Mechanical
8.1 Density
8.1.1 Density At Room Temperature
11.00 g/cm34.51 g/cm3
0.534
40.7
8.2.4 Density When Liquid (at m.p.)
9.2 Tensile Strength
9.3 Viscosity
9.5 Vapor Pressure
9.5.1 Vapor Pressure at 1000 K
10.1.2 Vapor Pressure at 2000 K
11.2 Elasticity properties
11.2.1 Shear Modulus
11.4.1 Bulk Modulus
1.3.1 Young's Modulus
1.11 Poisson Ratio
2.5 Other Mechanical Properties
3 Magnetic
3.1 Magnetic Characteristics
3.1.1 Specific Gravity
3.1.5 Magnetic Ordering
Paramagnetic
Paramagnetic
3.1.6 Permeability
3.2.2 Susceptibility
3.3 Electrical Properties
3.3.1 Electrical Property
3.3.2 Resistivity
200.00 nΩ·m420.00 nΩ·m
0.18
961
4.2.4 Electrical Conductivity
0.07 106/cm Ω0.02 106/cm Ω
0.00666
0.63
5.1.1 Electron Affinity
53.00 kJ/mol7.60 kJ/mol
0
222.8
6 Thermal
6.1 Specific Heat
0.21 J/(kg K)0.52 J/(kg K)
0.11
3.6
6.2 Molar Heat Capacity
24.27 J/mol·K25.06 J/mol·K
16.443
62.7
6.4 Thermal Conductivity
50.60 W/m·K21.90 W/m·K
6.3
429
7.3 Critical Temperature
7.5 Thermal Expansion
7.10 µm/(m·K)8.60 µm/(m·K)
4.5
97
7.6 Enthalpy
7.6.1 Enthalpy of Vaporization
660.00 kJ/mol429.00 kJ/mol
7.32
799.1
7.7.2 Enthalpy of Fusion
23.01 kJ/mol15.48 kJ/mol
2.1
35.23
7.8.4 Enthalpy of Atomization
649.00 kJ/mol468.60 kJ/mol
61.5
837
7.9 Standard Molar Entropy
181.10 J/mol.K27.30 J/mol.K
9.5
198.1