1 Periodic Table
1.1 Symbol
1.2 Group Number
1.6 Period Number
1.9 Block
1.10 Element Family
1.11 CAS Number
74402687440097
7429905
54386242
1.12 Space Group Name
1.13 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.
- In the list of most abundant element Potassium is ranked 7th.
- Potassium can easily be sliced (chopped) down using knife.
3.2 Sources
Made by Bombarding Molybdenum with Deuterons
Found in Minerals, Mining
3.3 History
3.3.1 Who Discovered
Emilio Segrè and Carlo Perriero
Humphry Davy
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3.4.3 Abundance In Sun
~-9999 %~0.0004 %
1E-08
0.1
3.4.5 Abundance In Meteorites
3.4.7 Abundance In Earth's Crust
3.4.9 Abundance In Oceans
3.4.11 Abundance In Humans
4 Uses
4.1 Uses & Benefits
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
- Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.
- Potassium carbonate is used in glass manufacturing and Potassium carbonate in manufacturing detergent and body wash.
4.1.1 Industrial Uses
NA
Ammunition Industry, Chemical Industry
4.1.2 Medical Uses
NA
Pharmaceutical Industry
4.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
NA
4.2 Biological Properties
4.2.1 Toxicity
4.2.2 Present in Human Body
5.1.1 In Blood
0.00 Blood/mg dm-31,620.00 Blood/mg dm-3
0
1970
5.2.4 In Bone
0.00 p.p.m.2,100.00 p.p.m.
0
170000
6 Physical
6.1 Melting Point
2,200.00 °C63.65 °C
27
3410
7.2 Boiling Point
4,877.00 °C774.00 °C
147
5660
7.4 Appearance
7.4.1 Physical State
7.4.2 Color
7.4.3 Luster
7.5 Hardness
7.5.1 Mohs Hardness
7.7.2 Brinell Hardness
7.7.3 Vickers Hardness
7.8 Speed of Sound
16,200.00 m/s2,000.00 m/s
818
16200
7.9 Optical Properties
7.9.1 Refractive Index
7.9.2 Reflectivity
7.11 Allotropes
7.11.1 α Allotropes
Not Available
Not Available
7.11.2 β Allotropes
Not Available
Not Available
7.11.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
8.4 Electronegativity
8.4.1 Pauling Electronegativity
9.0.4 Sanderson Electronegativity
9.2.2 Allred Rochow Electronegativity
9.3.2 Mulliken-Jaffe Electronegativity
9.3.4 Allen Electronegativity
9.4 Electropositivity
9.4.1 Pauling Electropositivity
9.5 Ionization Energies
9.5.1 1st Energy Level
702.00 kJ/mol418.80 kJ/mol
375.7
26130
9.5.3 2nd Energy Level
1,470.00 kJ/mol3,052.00 kJ/mol
710.2162
28750
9.5.5 3rd Energy Level
2,850.00 kJ/mol4,420.00 kJ/mol
1600
34230
9.6.2 4th Energy Level
NA5,877.00 kJ/mol
2780
37066
9.7.2 5th Energy Level
NA7,975.00 kJ/mol
4305.2
97510
9.7.3 6th Energy Level
NA9,590.00 kJ/mol
5715.8
105800
9.7.5 7th Energy level
NA11,343.00 kJ/mol
7226.8
114300
9.7.7 8th Energy Level
NA14,944.00 kJ/mol
8857.4
125300
9.7.9 9th Energy Level
NA16,963.70 kJ/mol
14110
134700
9.7.10 10th Energy Level
NA48,610.00 kJ/mol
17100
144300
9.7.12 11th Energy Level
NA54,490.00 kJ/mol
19900
169988
9.7.14 12th Energy Level
NA60,730.00 kJ/mol
22219
189368
9.7.16 13th Energy Level
NA68,950.00 kJ/mol
26930
76015
9.7.18 14th Energy Level
NA75,900.00 kJ/mol
29196
86450
9.7.20 15th Energy Level
NA83,080.00 kJ/mol
41987
97510
9.7.22 16th Energy Level
NA93,400.00 kJ/mol
47206
109480
9.7.24 17th Energy Level
NA99,710.00 kJ/mol
52737
122200
9.7.25 18th Energy Level
9.7.27 19th Energy Level
9.7.29 20th Energy Level
9.7.30 21st Energy Level
9.7.32 22nd Energy Level
9.7.33 23rd Energy Level
9.7.35 24th Energy Level
9.7.37 25th Energy Level
9.7.38 26th Energy Level
9.7.40 27th Energy Level
9.7.42 28th Energy Level
9.7.43 29th Energy Level
9.7.45 30th Energy Level
9.8 Electrochemical Equivalent
0.52 g/amp-hr1.46 g/amp-hr
0.16812
8.3209
9.9 Electron Work Function
9.10 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Chemical Stability, Flammability, Ionization, Solubility
10 Atomic
10.1 Atomic Number
10.2 Electron Configuration
10.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
10.3.1 Crystal Lattice
10.4 Atom
10.4.1 Number of Protons
10.4.4 Number of Neutrons
10.4.6 Number of Electrons
10.5 Radius of an Atom
10.5.1 Atomic Radius
136.00 pm227.00 pm
112
265
10.5.4 Covalent Radius
147.00 pm203.00 pm
96
260
10.6.1 Van der Waals Radius
200.00 pm275.00 pm
139
348
10.8 Atomic Weight
98.00 amu39.10 amu
6.94
294
10.9 Atomic Volume
8.50 cm3/mol45.46 cm3/mol
1.39
71.07
11.2 Adjacent Atomic Numbers
11.2.1 Previous Element
11.2.2 Next Element
11.3 Valence Electron Potential
180.00 (-eV)10.40 (-eV)
8
392.42
11.7 Lattice Constant
273.50 pm532.80 pm
228.58
891.25
11.8 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
11.9 Lattice C/A Ratio
12 Mechanical
12.1 Density
12.1.1 Density At Room Temperature
11.00 g/cm30.86 g/cm3
0.534
40.7
12.2.2 Density When Liquid (at m.p.)
12.3 Tensile Strength
12.4 Viscosity
12.5 Vapor Pressure
12.5.1 Vapor Pressure at 1000 K
12.6.1 Vapor Pressure at 2000 K
12.8 Elasticity properties
12.8.1 Shear Modulus
12.8.2 Bulk Modulus
12.10.1 Young's Modulus
12.12 Poisson Ratio
12.15 Other Mechanical Properties
13 Magnetic
13.1 Magnetic Characteristics
13.1.1 Specific Gravity
14.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
14.1.3 Permeability
14.1.5 Susceptibility
14.2 Electrical Properties
14.2.1 Electrical Property
14.2.2 Resistivity
200.00 nΩ·m72.00 nΩ·m
0.18
961
14.3.1 Electrical Conductivity
0.07 106/cm Ω0.14 106/cm Ω
0.00666
0.63
14.5.2 Electron Affinity
53.00 kJ/mol48.40 kJ/mol
0
222.8
15 Thermal
15.1 Specific Heat
0.21 J/(kg K)0.75 J/(kg K)
0.11
3.6
15.2 Molar Heat Capacity
24.27 J/mol·K29.60 J/mol·K
16.443
62.7
15.3 Thermal Conductivity
50.60 W/m·K102.50 W/m·K
6.3
429
1.2 Critical Temperature
1.4 Thermal Expansion
7.10 µm/(m·K)83.30 µm/(m·K)
4.5
97
2.2 Enthalpy
2.2.1 Enthalpy of Vaporization
660.00 kJ/mol77.50 kJ/mol
7.32
799.1
2.3.3 Enthalpy of Fusion
23.01 kJ/mol2.32 kJ/mol
2.1
35.23
2.3.5 Enthalpy of Atomization
649.00 kJ/mol89.50 kJ/mol
61.5
837
2.6 Standard Molar Entropy
181.10 J/mol.K64.70 J/mol.K
9.5
198.1