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Lutetium
Lutetium

Cesium
Cesium



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Lutetium
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Lutetium Cesium Comparison

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1 Periodic Table
1.1 Symbol
Lu
Cs
1.2 Group Number
NA1
Gadolinium Metal
0 17
1.4 Period Number
66
Lithium Metal
2 7
1.1 Block
f block
s block
1.3 Element Family
Lanthanide
Alkali
1.5 CAS Number
74399437440462
Aluminium Metal
7429905 54386242
1.7 Space Group Name
P63/mmc
Im_ 3m
1.9 Space Group Number
194.00229.00
Plutonium Metal
11 229
3 Facts
3.1 Interesting Facts
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
Not Available
3.2 Sources
Found in Minerals, Mining, Ores of Minerals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Georges Urbain and Carl Auer von Welsbach
Robert Bunsen and Gustav Kirchhoff
3.4.2 Discovery
In 1906
In 1860
3.5 Abundance
3.5.1 Abundance In Universe
1 * 10-8 %8 * 10-8 %
Thallium Metal
5E-09 0.11
4.10.1 Abundance In Sun
~0.0000001 %~0.0000008 %
Beryllium Metal
1E-08 0.1
4.12.1 Abundance In Meteorites
0.00 %0.00 %
Gold Metal
1.7E-07 22
5.6.3 Abundance In Earth's Crust
0.00 %0.00 %
Radium Metal
9.9E-12 8.1
8.7.1 Abundance In Oceans
0.00 %0.00 %
Protactinium Metal
2E-23 1.1
8.7.5 Abundance In Humans
NA0.00 %
Radium Metal
1E-13 1.4
9 Uses
9.1 Uses & Benefits
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
  • The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
  • In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
9.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
9.1.2 Medical Uses
NA
NA
9.1.3 Other Uses
Alloys
Alloys
9.2 Biological Properties
9.2.1 Toxicity
Low Toxic
Mildly Toxic
9.2.2 Present in Human Body
9.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium Metal
0 1970
10.2.5 In Bone
NA0.05 p.p.m.
Plutonium Metal
0 170000
11 Physical
11.1 Melting Point
1,652.00 °C28.50 °C
Francium Metal
27 3410
11.4 Boiling Point
3,402.00 °C678.40 °C
Flerovium Metal
147 5660
13.3 Appearance
13.3.1 Physical State
Solid
Solid
13.3.2 Color
Silvery White
Silvery Gold
13.3.3 Luster
Metallic
NA
13.4 Hardness
13.4.1 Mohs Hardness
NA0.20
Tin
0.2 8.5
13.6.3 Brinell Hardness
893.00 MPa0.14 MPa
Palladium
0.14 3490
16.3.3 Vickers Hardness
1,160.00 MPaNA
Palladium Metal
121 3430
16.5 Speed of Sound
NANA
Thallium Metal
818 16200
17.2 Optical Properties
17.2.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
19.2.3 Reflectivity
NANA
Molybdenum Metal
58 97
19.6 Allotropes
19.6.1 α Allotropes
Not Available
Not Available
19.6.2 β Allotropes
Not Available
Not Available
19.6.3 γ Allotropes
Not Available
Not Available
20 Chemical
20.1 Chemical Formula
Lu
Cs
20.2 Isotopes
20.2.1 Known Isotopes
3536
Tennessine Metal
0 38
21.3 Electronegativity
21.3.1 Pauling Electronegativity
1.270.79
Francium Metal
0.7 2.54
21.8.3 Sanderson Electronegativity
NA0.22
Sodium
0.22 2.56
21.8.9 Allred Rochow Electronegativity
1.140.86
Potassium
0.86 1.82
22.4.3 Mulliken-Jaffe Electronegativity
NA0.62
Sodium
0.62 2.48
22.4.5 Allen Electronegativity
NA0.66
Francium
0.659 2.7
22.8 Electropositivity
22.8.1 Pauling Electropositivity
2.733.21
Gold Metal
1.46 3.3
23.3 Ionization Energies
23.3.1 1st Energy Level
523.50 kJ/mol375.70 kJ/mol
Palladium
375.7 26130
23.4.2 2nd Energy Level
1,340.00 kJ/mol2,234.30 kJ/mol
Ruthenium Metal
710.2162 28750
24.1.2 3rd Energy Level
2,022.30 kJ/mol3,400.00 kJ/mol
Osmium Metal
1600 34230
26.3.1 4th Energy Level
4,370.00 kJ/molNA
Thorium Metal
2780 37066
27.4.1 5th Energy Level
6,445.00 kJ/molNA
Dubnium Metal
4305.2 97510
27.6.2 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
27.8.5 7th Energy level
NANA
Bohrium Metal
7226.8 114300
27.10.2 8th Energy Level
NANA
Hassium Metal
8857.4 125300
27.10.6 9th Energy Level
NANA
Yttrium Metal
14110 134700
27.12.3 10th Energy Level
NANA
Strontium Metal
17100 144300
27.15.2 11th Energy Level
NANA
Yttrium Metal
19900 169988
27.15.7 12th Energy Level
NANA
Molybdenum Metal
22219 189368
27.16.3 13th Energy Level
NANA
Molybdenum Metal
26930 76015
27.20.2 14th Energy Level
NANA
Molybdenum Metal
29196 86450
27.22.4 15th Energy Level
NANA
Manganese Metal
41987 97510
27.23.2 16th Energy Level
NANA
Iron Metal
47206 109480
27.23.6 17th Energy Level
NANA
Cobalt Metal
52737 122200
27.23.10 18th Energy Level
NANA
Nickel Metal
58570 134810
27.23.14 19th Energy Level
NANA
Copper Metal
64702 148700
27.23.18 20th Energy Level
NANA
Molybdenum Metal
80400 171200
27.23.22 21st Energy Level
NANA
Molybdenum Metal
87000 179100
27.23.26 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
27.23.29 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
27.23.32 24th Energy Level
NANA
Molybdenum Metal
104400 195200
27.23.35 25th Energy Level
NANA
Molybdenum Metal
121900 121900
27.23.38 26th Energy Level
NANA
Molybdenum Metal
127700 127700
27.23.41 27th Energy Level
NANA
Molybdenum Metal
133800 133800
27.24.2 28th Energy Level
NANA
Molybdenum Metal
139800 139800
27.24.5 29th Energy Level
NANA
Molybdenum Metal
148100 148100
27.24.8 30th Energy Level
NANA
Molybdenum Metal
154500 154500
27.25 Electrochemical Equivalent
2.18 g/amp-hr4.96 g/amp-hr
Beryllium Metal
0.16812 8.3209
27.26 Electron Work Function
3.30 eV2.14 eV
Potassium
2.14 5.65
27.27 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility
28 Atomic
28.1 Atomic Number
7155
Lithium Metal
3 117
28.2 Electron Configuration
[Xe] 6s2 4f14 5d1
[Xe] 6s1
28.3 Crystal Structure
Hexagonal Close Packed (HCP)
Body Centered Cubic (BCC)
28.3.2 Crystal Lattice
28.4 Atom
28.4.1 Number of Protons
7155
Lithium Metal
3 117
28.4.6 Number of Neutrons
10478
Lithium Metal
4 184
28.4.13 Number of Electrons
7155
Lithium Metal
3 117
28.5 Radius of an Atom
28.5.1 Atomic Radius
174.00 pm265.00 pm
Beryllium Metal
112 265
28.5.4 Covalent Radius
187.00 pm244.00 pm
Beryllium Metal
96 260
28.5.8 Van der Waals Radius
221.00 pm343.00 pm
Zinc Metal
139 348
28.6 Atomic Weight
174.97 amu132.91 amu
Lithium Metal
6.94 294
28.7 Atomic Volume
17.78 cm3/mol71.07 cm3/mol
Manganese Metal
1.39 71.07
28.8 Adjacent Atomic Numbers
28.8.1 Previous Element
28.8.2 Next Element
28.9 Valence Electron Potential
50.90 (-eV)8.62 (-eV)
Francium Metal
8 392.42
28.11 Lattice Constant
350.31 pm614.10 pm
Beryllium Metal
228.58 891.25
28.13 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
28.14 Lattice C/A Ratio
1.59NA
Beryllium Metal
1.567 1.886
29 Mechanical
29.1 Density
29.1.1 Density At Room Temperature
9.84 g/cm31.93 g/cm3
Lithium Metal
0.534 40.7
30.1.1 Density When Liquid (at m.p.)
9.30 g/cm31.84 g/cm3
Lithium Metal
0.512 20
30.3 Tensile Strength
NANA
Indium Metal
2.5 11000
30.7 Viscosity
NANA
Mercury Metal
0.001526 0.001526
31.2 Vapor Pressure
31.2.1 Vapor Pressure at 1000 K
0.00 (Pa)NA
Cerium Metal
2.47E-11 121
31.6.2 Vapor Pressure at 2000 K
3.18 (Pa)NA
Tungsten Metal
2.62E-10 774
31.7 Elasticity properties
31.7.1 Shear Modulus
27.20 GPaNA
Potassium Metal
1.3 222
31.9.1 Bulk Modulus
47.60 GPa1.60 GPa
Tin
1.6 462
32.2.1 Young's Modulus
68.60 GPa1.70 GPa
Palladium
1.7 528
32.3 Poisson Ratio
0.26NA
Beryllium Metal
0.032 0.47
33.2 Other Mechanical Properties
NA
Ductile
34 Magnetic
34.1 Magnetic Characteristics
34.1.1 Specific Gravity
9.841.87
Lithium Metal
0.53 4500
34.5.2 Magnetic Ordering
Paramagnetic
Paramagnetic
34.5.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
34.5.5 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
34.8 Electrical Properties
34.8.1 Electrical Property
Conductor
Semiconductor
34.8.2 Resistivity
582.00 nΩ·m205.00 nΩ·m
Thallium Metal
0.18 961
34.10.1 Electrical Conductivity
0.02 106/cm Ω0.05 106/cm Ω
Plutonium Metal
0.00666 0.63
34.13.2 Electron Affinity
50.00 kJ/mol45.50 kJ/mol
Mercury Metal
0 222.8
35 Thermal
35.1 Specific Heat
0.15 J/(kg K)0.24 J/(kg K)
Americium Metal
0.11 3.6
36.2 Molar Heat Capacity
26.86 J/mol·K32.21 J/mol·K
Beryllium Metal
16.443 62.7
36.4 Thermal Conductivity
16.40 W/m·K35.90 W/m·K
Neptunium Metal
6.3 429
36.9 Critical Temperature
NA1,938.00 K
Ytterbium Metal
26.3 3223
37.5 Thermal Expansion
9.90 µm/(m·K)97.00 µm/(m·K)
Tungsten Metal
4.5 97
37.8 Enthalpy
37.8.1 Enthalpy of Vaporization
355.90 kJ/mol65.90 kJ/mol
Zinc Metal
7.32 799.1
37.12.1 Enthalpy of Fusion
18.70 kJ/mol2.10 kJ/mol
Tin
2.1 35.23
37.15.2 Enthalpy of Atomization
398.00 kJ/mol78.20 kJ/mol
Mercury Metal
61.5 837
38.5 Standard Molar Entropy
51.00 J/mol.K85.20 J/mol.K
Beryllium Metal
9.5 198.1