1 Periodic Table
1.1 Symbol
1.2 Group Number
1.5 Period Number
3.2 Block
3.3 Element Family
Transition Metal
Transition Metal
3.4 CAS Number
74402687440202
7429905
54386242
3.8 Space Group Name
3.9 Space Group Number
4 Facts
4.1 Interesting Facts
- Original name of Technetium was Masurium.
- At the time of its discovery it found in sample of Molybdenum.
- Scandium is known as one of the rare earth elements.
- Scandium metal found in rare minerals called Wolframite .
4.2 Sources
Made by Bombarding Molybdenum with Deuterons
Found in Minerals, Mining, Ores of metals, Ores of Minerals
4.3 History
4.3.1 Who Discovered
Emilio Segrè and Carlo Perriero
Lars Fredrik Nilson
4.3.2 Discovery
4.4 Abundance
4.4.1 Abundance In Universe
4.5.1 Abundance In Sun
~-9999 %~0.000004 %
1E-08
0.1
4.7.2 Abundance In Meteorites
4.7.5 Abundance In Earth's Crust
4.8.3 Abundance In Oceans
4.9.2 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
- Uses of Scandium are limited to research purpose only. However, it has very low density and higher melting point.
-
Its compounds like scandium iodide is used in mercury vapor lamps to produce very bright white light.
5.2.1 Industrial Uses
NA
Electrical Industry, Electronic Industry
5.2.2 Medical Uses
5.2.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys
5.3 Biological Properties
5.3.1 Toxicity
5.3.2 Present in Human Body
5.3.3 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
0
1970
5.3.5 In Bone
0.00 p.p.m.0.00 p.p.m.
0
170000
6 Physical
6.1 Melting Point
2,200.00 °C1,539.00 °C
27
3410
7.2 Boiling Point
4,877.00 °C2,832.00 °C
147
5660
8.2 Appearance
8.2.1 Physical State
8.2.2 Color
8.2.3 Luster
8.3 Hardness
8.3.1 Mohs Hardness
8.4.4 Brinell Hardness
8.5.1 Vickers Hardness
8.7 Speed of Sound
16,200.00 m/sNA
818
16200
8.9 Optical Properties
8.9.1 Refractive Index
9.1.2 Reflectivity
9.2 Allotropes
9.2.1 α Allotropes
Not Available
Not Available
9.2.2 β Allotropes
Not Available
Not Available
9.2.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
10.3 Isotopes
10.3.1 Known Isotopes
10.6 Electronegativity
10.6.1 Pauling Electronegativity
10.6.3 Sanderson Electronegativity
10.7.2 Allred Rochow Electronegativity
10.9.1 Mulliken-Jaffe Electronegativity
11.2.2 Allen Electronegativity
11.3 Electropositivity
11.3.1 Pauling Electropositivity
11.4 Ionization Energies
11.4.1 1st Energy Level
702.00 kJ/mol633.10 kJ/mol
375.7
26130
11.5.3 2nd Energy Level
1,470.00 kJ/mol1,235.00 kJ/mol
710.2162
28750
11.6.2 3rd Energy Level
2,850.00 kJ/mol2,388.60 kJ/mol
1600
34230
11.6.3 4th Energy Level
NA7,090.60 kJ/mol
2780
37066
11.6.5 5th Energy Level
NA8,843.00 kJ/mol
4305.2
97510
12.1.1 6th Energy Level
NA10,679.00 kJ/mol
5715.8
105800
12.2.1 7th Energy level
NA13,310.00 kJ/mol
7226.8
114300
12.2.2 8th Energy Level
NA15,250.00 kJ/mol
8857.4
125300
12.3.1 9th Energy Level
NA17,370.00 kJ/mol
14110
134700
12.4.1 10th Energy Level
NA21,726.00 kJ/mol
17100
144300
12.5.1 11th Energy Level
NA24,102.00 kJ/mol
19900
169988
12.6.2 12th Energy Level
NA66,320.00 kJ/mol
22219
189368
12.6.4 13th Energy Level
NA73,010.00 kJ/mol
26930
76015
12.6.5 14th Energy Level
NA80,160.00 kJ/mol
29196
86450
12.6.7 15th Energy Level
NA89,490.00 kJ/mol
41987
97510
12.7.1 16th Energy Level
NA97,400.00 kJ/mol
47206
109480
12.7.2 17th Energy Level
NA105,600.00 kJ/mol
52737
122200
12.7.3 18th Energy Level
NA117,000.00 kJ/mol
58570
134810
12.7.4 19th Energy Level
NA124,270.00 kJ/mol
64702
148700
12.7.5 20th Energy Level
12.7.6 21st Energy Level
12.7.7 22nd Energy Level
12.7.8 23rd Energy Level
12.7.9 24th Energy Level
12.7.10 25th Energy Level
12.7.11 26th Energy Level
12.7.12 27th Energy Level
12.7.13 28th Energy Level
12.7.14 29th Energy Level
12.7.15 30th Energy Level
12.8 Electrochemical Equivalent
0.52 g/amp-hr0.56 g/amp-hr
0.16812
8.3209
12.9 Electron Work Function
12.10 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility
13 Atomic
13.1 Atomic Number
13.2 Electron Configuration
[Kr] 4d5 5s2
[Ar] 3d1 4s2
13.3 Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
13.3.1 Crystal Lattice
13.4 Atom
13.4.1 Number of Protons
13.4.2 Number of Neutrons
13.4.3 Number of Electrons
13.5 Radius of an Atom
13.5.1 Atomic Radius
136.00 pm162.00 pm
112
265
13.5.2 Covalent Radius
147.00 pm170.00 pm
96
260
13.5.3 Van der Waals Radius
200.00 pm211.00 pm
139
348
13.6 Atomic Weight
98.00 amu44.96 amu
6.94
294
13.7 Atomic Volume
8.50 cm3/mol15.00 cm3/mol
1.39
71.07
13.8 Adjacent Atomic Numbers
13.8.1 Previous Element
13.8.2 Next Element
13.9 Valence Electron Potential
180.00 (-eV)58.00 (-eV)
8
392.42
13.10 Lattice Constant
273.50 pm330.90 pm
228.58
891.25
13.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
13.12 Lattice C/A Ratio
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
11.00 g/cm32.99 g/cm3
0.534
40.7
14.1.2 Density When Liquid (at m.p.)
14.2 Tensile Strength
14.3 Viscosity
14.4 Vapor Pressure
14.4.1 Vapor Pressure at 1000 K
14.4.2 Vapor Pressure at 2000 K
NA91.30 (Pa)
2.62E-10
774
14.5 Elasticity properties
14.5.1 Shear Modulus
14.5.2 Bulk Modulus
14.5.3 Young's Modulus
14.6 Poisson Ratio
14.7 Other Mechanical Properties
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
15.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
15.1.3 Permeability
15.1.4 Susceptibility
15.2 Electrical Properties
15.2.1 Electrical Property
15.2.2 Resistivity
200.00 nΩ·m562.00 nΩ·m
0.18
961
15.2.3 Electrical Conductivity
0.07 106/cm Ω0.02 106/cm Ω
0.00666
0.63
15.2.4 Electron Affinity
53.00 kJ/mol18.10 kJ/mol
0
222.8
16 Thermal
16.1 Specific Heat
0.21 J/(kg K)0.60 J/(kg K)
0.11
3.6
16.2 Molar Heat Capacity
24.27 J/mol·K25.52 J/mol·K
16.443
62.7
16.3 Thermal Conductivity
50.60 W/m·K15.80 W/m·K
6.3
429
16.4 Critical Temperature
16.5 Thermal Expansion
7.10 µm/(m·K)10.20 µm/(m·K)
4.5
97
16.6 Enthalpy
16.6.1 Enthalpy of Vaporization
660.00 kJ/mol314.20 kJ/mol
7.32
799.1
16.6.2 Enthalpy of Fusion
23.01 kJ/mol14.10 kJ/mol
2.1
35.23
16.6.3 Enthalpy of Atomization
649.00 kJ/mol343.00 kJ/mol
61.5
837
16.7 Standard Molar Entropy
181.10 J/mol.K34.60 J/mol.K
9.5
198.1