1 Periodic Table
1.1 Symbol
1.2 Group Number
1.7 Period Number
1.11 Block
1.12 Element Family
Transition Metal
Post-Transition
1.13 CAS Number
74402687440699
7429905
54386242
2.8 Space Group Name
2.9 Space Group Number
3 Facts
3.1 Interesting Facts
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
- Bismuth metal is soluble and reacts with concentrated nitric acid.
- It oxides are used as a yellow pigment in paint. Bismuth chloride oxide BiClO gives a pearly texture to cosmetics.
3.2 Sources
Made by Bombarding Molybdenum with Deuterons
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Emilio Segrè and Carlo Perriero
Claude François Geoffroy
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3.4.4 Abundance In Sun
~-9999 %~0.000006 %
1E-08
0.1
4.5.1 Abundance In Meteorites
4.5.5 Abundance In Earth's Crust
5.2.4 Abundance In Oceans
6.1.1 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.
- Tin and bismuth alloys have a very low melting point and hence it is used in fire detector and the fire extinguishers. It also used in electric solders and fuses.
7.1.1 Industrial Uses
NA
Automobile Industry, 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-30.02 Blood/mg dm-3
0
1970
7.3.1 In Bone
0.00 p.p.m.0.20 p.p.m.
0
170000
9 Physical
9.1 Melting Point
2,200.00 °C271.30 °C
27
3410
9.2 Boiling Point
4,877.00 °C1,560.00 °C
147
5660
10.2 Appearance
10.2.1 Physical State
10.2.2 Color
10.2.3 Luster
10.3 Hardness
10.3.1 Mohs Hardness
10.5.1 Brinell Hardness
10.8.2 Vickers Hardness
11.3 Speed of Sound
16,200.00 m/s1,790.00 m/s
818
16200
11.5 Optical Properties
11.5.1 Refractive Index
11.5.3 Reflectivity
11.6 Allotropes
11.6.1 α Allotropes
Not Available
Not Available
11.6.2 β Allotropes
Not Available
Not Available
11.6.3 γ Allotropes
Not Available
Not Available
12 Chemical
12.1 Chemical Formula
12.2 Isotopes
12.2.1 Known Isotopes
12.4 Electronegativity
12.4.1 Pauling Electronegativity
12.5.2 Sanderson Electronegativity
13.2.2 Allred Rochow Electronegativity
13.3.2 Mulliken-Jaffe Electronegativity
13.5.2 Allen Electronegativity
13.6 Electropositivity
13.6.1 Pauling Electropositivity
13.7 Ionization Energies
13.7.1 1st Energy Level
702.00 kJ/mol703.00 kJ/mol
375.7
26130
13.7.3 2nd Energy Level
1,470.00 kJ/mol1,610.00 kJ/mol
710.2162
28750
13.7.6 3rd Energy Level
2,850.00 kJ/mol2,466.00 kJ/mol
1600
34230
13.7.8 4th Energy Level
NA4,370.00 kJ/mol
2780
37066
13.7.11 5th Energy Level
NA5,400.00 kJ/mol
4305.2
97510
13.8.3 6th Energy Level
NA8,520.00 kJ/mol
5715.8
105800
13.9.2 7th Energy level
13.9.4 8th Energy Level
13.9.6 9th Energy Level
13.9.9 10th Energy Level
13.9.12 11th Energy Level
13.9.15 12th Energy Level
13.9.19 13th Energy Level
13.9.22 14th Energy Level
13.9.27 15th Energy Level
13.9.30 16th Energy Level
13.9.32 17th Energy Level
13.9.36 18th Energy Level
13.9.39 19th Energy Level
13.9.42 20th Energy Level
13.9.45 21st Energy Level
13.9.47 22nd Energy Level
13.9.50 23rd Energy Level
13.9.52 24th Energy Level
13.10.2 25th Energy Level
13.10.3 26th Energy Level
13.10.5 27th Energy Level
13.11.2 28th Energy Level
14.1.1 29th Energy Level
14.1.3 30th Energy Level
14.3 Electrochemical Equivalent
0.52 g/amp-hr2.60 g/amp-hr
0.16812
8.3209
14.6 Electron Work Function
14.7 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes, Solubility
15 Atomic
15.1 Atomic Number
15.2 Electron Configuration
[Kr] 4d5 5s2
[Xe] 4f14 5d10 6s2 6p3
15.3 Crystal Structure
Hexagonal Close Packed (HCP)
Rhombohedral (RHO)
15.3.1 Crystal Lattice
15.4 Atom
15.4.1 Number of Protons
15.5.4 Number of Neutrons
15.6.1 Number of Electrons
15.9 Radius of an Atom
15.9.1 Atomic Radius
136.00 pm156.00 pm
112
265
15.9.2 Covalent Radius
147.00 pm148.00 pm
96
260
15.12.1 Van der Waals Radius
200.00 pm207.00 pm
139
348
15.14 Atomic Weight
98.00 amu208.98 amu
6.94
294
16.4 Atomic Volume
8.50 cm3/mol21.30 cm3/mol
1.39
71.07
17.5 Adjacent Atomic Numbers
17.5.1 Previous Element
17.5.2 Next Element
17.6 Valence Electron Potential
180.00 (-eV)41.90 (-eV)
8
392.42
17.7 Lattice Constant
273.50 pm667.40 pm
228.58
891.25
17.9 Lattice Angles
17.10 Lattice C/A Ratio
18 Mechanical
18.1 Density
18.1.1 Density At Room Temperature
11.00 g/cm39.78 g/cm3
0.534
40.7
18.3.3 Density When Liquid (at m.p.)
18.5 Tensile Strength
18.6 Viscosity
18.8 Vapor Pressure
18.8.1 Vapor Pressure at 1000 K
18.8.3 Vapor Pressure at 2000 K
18.10 Elasticity properties
18.10.1 Shear Modulus
19.1.2 Bulk Modulus
19.2.1 Young's Modulus
19.6 Poisson Ratio
20.2 Other Mechanical Properties
21 Magnetic
21.1 Magnetic Characteristics
21.1.1 Specific Gravity
21.1.3 Magnetic Ordering
21.1.4 Permeability
NA0.00 H/m
1.25643E-06
0.0063
21.1.6 Susceptibility
21.2 Electrical Properties
21.2.1 Electrical Property
21.2.2 Resistivity
200.00 nΩ·m1.29 nΩ·m
0.18
961
22.2.1 Electrical Conductivity
0.07 106/cm Ω0.01 106/cm Ω
0.00666
0.63
22.5.1 Electron Affinity
53.00 kJ/mol91.20 kJ/mol
0
222.8
23 Thermal
23.1 Specific Heat
0.21 J/(kg K)0.12 J/(kg K)
0.11
3.6
23.4 Molar Heat Capacity
24.27 J/mol·K25.52 J/mol·K
16.443
62.7
23.5 Thermal Conductivity
50.60 W/m·K7.97 W/m·K
6.3
429
23.7 Critical Temperature
23.8 Thermal Expansion
7.10 µm/(m·K)13.40 µm/(m·K)
4.5
97
23.10 Enthalpy
23.10.1 Enthalpy of Vaporization
660.00 kJ/mol151.00 kJ/mol
7.32
799.1
24.2.3 Enthalpy of Fusion
23.01 kJ/mol10.90 kJ/mol
2.1
35.23
24.3.3 Enthalpy of Atomization
649.00 kJ/mol207.10 kJ/mol
61.5
837
24.4 Standard Molar Entropy
181.10 J/mol.K56.70 J/mol.K
9.5
198.1