1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
1.6 CAS Number
74399437440100
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- Metal dust of Lutetium element is highly explosive.
- Lutetium metal is corrosion resistance and acts stable in air.
- Praseodymium metal is synthetically produced metal.
- Praseodymium is used as possible fuel for radioactive generators.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Georges Urbain and Carl Auer von Welsbach
Not Available
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
1 * 10-8 %2 * 10-7 %
5E-09
0.11
2.4.2 Abundance In Sun
~0.0000001 %~0.0000001 %
1E-08
0.1
2.4.3 Abundance In Meteorites
2.4.4 Abundance In Earth's Crust
2.4.5 Abundance In Oceans
2.4.6 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
- The main use of Praseodymium include alloys. Praseodymium –Magnesium alloy is used in aircraft engines due to its high strength.
-
This metal is also used while making a permanent magnets.
3.1.1 Industrial Uses
3.1.2 Medical Uses
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
Low Toxic
Moderately Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
3.2.4 In Bone
4 Physical
4.1 Melting Point
1,652.00 °C935.00 °C
27
3410
4.2 Boiling Point
3,402.00 °C3,130.00 °C
147
5660
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
Silvery White
Grayish White
4.3.3 Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.2 Brinell Hardness
893.00 MPa481.00 MPa
0.14
3490
4.4.3 Vickers Hardness
1,160.00 MPa400.00 MPa
121
3430
4.5 Speed of Sound
4.6 Optical Properties
4.6.1 Refractive Index
4.6.2 Reflectivity
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
5.3.2 Sanderson Electronegativity
5.3.3 Allred Rochow Electronegativity
5.3.4 Mulliken-Jaffe Electronegativity
5.3.5 Allen Electronegativity
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 Ionization Energies
5.5.1 1st Energy Level
523.50 kJ/mol527.00 kJ/mol
375.7
26130
5.5.2 2nd Energy Level
1,340.00 kJ/mol1,020.00 kJ/mol
710.2162
28750
5.5.3 3rd Energy Level
2,022.30 kJ/mol2,086.00 kJ/mol
1600
34230
5.5.4 4th Energy Level
4,370.00 kJ/mol3,761.00 kJ/mol
2780
37066
5.5.5 5th Energy Level
6,445.00 kJ/mol5,551.00 kJ/mol
4305.2
97510
5.5.6 6th Energy Level
5.5.7 7th Energy level
5.5.8 8th Energy Level
5.5.9 9th Energy Level
5.5.10 10th Energy Level
5.5.11 11th Energy Level
5.5.12 12th Energy Level
5.5.13 13th Energy Level
5.5.14 14th Energy Level
5.5.15 15th Energy Level
5.5.16 16th Energy Level
5.5.17 17th Energy Level
5.5.18 18th Energy Level
5.5.19 19th Energy Level
5.5.20 20th Energy Level
5.5.21 21st Energy Level
5.5.22 22nd Energy Level
5.5.23 23rd Energy Level
5.5.24 24th Energy Level
5.5.25 25th Energy Level
5.5.26 26th Energy Level
5.5.27 27th Energy Level
5.5.28 28th Energy Level
5.5.29 29th Energy Level
5.5.30 30th Energy Level
5.6 Electrochemical Equivalent
2.18 g/amp-hr1.75 g/amp-hr
0.16812
8.3209
5.7 Electron Work Function
5.8 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes
6 Atomic
6.1 Atomic Number
6.2 Electron Configuration
[Xe] 6s2 4f14 5d1
[Xe] 4f3 6s2
6.3 Crystal Structure
Hexagonal Close Packed (HCP)
Hexagonal Close Packed (HCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
6.4.2 Number of Neutrons
6.4.3 Number of Electrons
6.5 Radius of an Atom
6.5.1 Atomic Radius
174.00 pm182.00 pm
112
265
6.5.2 Covalent Radius
187.00 pm203.00 pm
96
260
6.5.3 Van der Waals Radius
221.00 pm239.00 pm
139
348
6.6 Atomic Weight
174.97 amu140.91 amu
6.94
294
6.7 Atomic Volume
17.78 cm3/mol20.80 cm3/mol
1.39
71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
50.90 (-eV)42.64 (-eV)
8
392.42
6.10 Lattice Constant
350.31 pm367.25 pm
228.58
891.25
6.11 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
9.84 g/cm36.77 g/cm3
0.534
40.7
7.1.2 Density When Liquid (at m.p.)
9.30 g/cm36.50 g/cm3
0.512
20
7.2 Tensile Strength
7.3 Viscosity
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
0.00 (Pa)0.00 (Pa)
2.47E-11
121
7.4.2 Vapor Pressure at 2000 K
3.18 (Pa)13.20 (Pa)
2.62E-10
774
7.5 Elasticity properties
7.5.1 Shear Modulus
27.20 GPa14.80 GPa
1.3
222
7.5.2 Bulk Modulus
47.60 GPa28.80 GPa
1.6
462
7.5.3 Young's Modulus
68.60 GPa37.30 GPa
1.7
528
7.6 Poisson Ratio
7.7 Other Mechanical Properties
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
8.1.4 Susceptibility
8.2 Electrical Properties
8.2.1 Electrical Property
8.2.2 Resistivity
582.00 nΩ·m0.70 nΩ·m
0.18
961
8.2.3 Electrical Conductivity
0.02 106/cm Ω0.01 106/cm Ω
0.00666
0.63
8.2.4 Electron Affinity
50.00 kJ/mol50.00 kJ/mol
0
222.8
9 Thermal
9.1 Specific Heat
0.15 J/(kg K)0.19 J/(kg K)
0.11
3.6
9.2 Molar Heat Capacity
26.86 J/mol·K27.20 J/mol·K
16.443
62.7
9.3 Thermal Conductivity
16.40 W/m·K12.50 W/m·K
6.3
429
9.4 Critical Temperature
9.5 Thermal Expansion
9.90 µm/(m·K)6.70 µm/(m·K)
4.5
97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
355.90 kJ/mol296.80 kJ/mol
7.32
799.1
9.6.2 Enthalpy of Fusion
18.70 kJ/mol6.89 kJ/mol
2.1
35.23
9.6.3 Enthalpy of Atomization
398.00 kJ/mol368.00 kJ/mol
61.5
837
9.7 Standard Molar Entropy
51.00 J/mol.K73.20 J/mol.K
9.5
198.1