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Roentgenium
Roentgenium

Lutetium
Lutetium



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Roentgenium
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Lutetium

Roentgenium vs Lutetium

1 Periodic Table
1.1 Symbol
Rg
Lu
1.2 Group Number
11NA
Gadolinium
0 17
1.3 Period Number
76
Lithium
2 7
1.4 Block
d block
f block
1.5 Element Family
Unknown
Lanthanide
1.6 CAS Number
543862427439943
Aluminium
7429905 54386242
1.7 Space Group Name
Not Available
P63/mmc
1.8 Space Group Number
194.00194.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
Not Available
  • Metal dust of Lutetium element is highly explosive.
  • Lutetium metal is corrosion resistance and acts stable in air.
2.2 Sources
Synthetically Produced
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Gesellschaft für Schwerionenforschung
Georges Urbain and Carl Auer von Welsbach
2.3.2 Discovery
In 1994
In 1906
2.4 Abundance
2.4.1 Abundance In Universe
NA1 * 10-8 %
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~0.0000001 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
NA0.00 %
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
NA0.00 %
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
NA0.00 %
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Currently known uses of Roentgenium metal are limited to research purpose only.
  • Lutetium metal is used outside research. It has commercial uses like Industrial catalyst for cracking oil refineries of hydrocarbons .
3.1.1 Industrial Uses
NA
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Research Purposes
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Unknown
Low Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-3NA
Plutonium
0 1970
3.2.4 In Bone
0.00 p.p.m.NA
Plutonium
0 170000
4 Physical
4.1 Melting Point
NA1,652.00 °C
Francium
27 3410
4.2 Boiling Point
NA3,402.00 °C
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silver
Silvery White
4.3.3 Luster
Unknown Luster
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
NANA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
NA893.00 MPa
Cesium
0.14 3490
4.4.3 Vickers Hardness
NA1,160.00 MPa
Palladium
121 3430
4.5 Speed of Sound
NANA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum
58 97
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
Rg
Lu
5.2 Isotopes
5.2.1 Known Isotopes
135
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
NA1.27
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
NA1.14
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
NANA
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
NA2.73
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
1,022.70 kJ/mol523.50 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
2,074.40 kJ/mol1,340.00 kJ/mol
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
3,077.90 kJ/mol2,022.30 kJ/mol
Osmium
1600 34230
5.5.4 4th Energy Level
4,052.40 kJ/mol4,370.00 kJ/mol
Thorium
2780 37066
5.5.5 5th Energy Level
5,306.70 kJ/mol6,445.00 kJ/mol
Dubnium
4305.2 97510
5.5.6 6th Energy Level
NANA
Seaborgium
5715.8 105800
5.5.7 7th Energy level
NANA
Bohrium
7226.8 114300
5.5.8 8th Energy Level
NANA
Hassium
8857.4 125300
5.5.9 9th Energy Level
NANA
Yttrium
14110 134700
5.5.10 10th Energy Level
NANA
Strontium
17100 144300
5.5.11 11th Energy Level
NANA
Yttrium
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum
29196 86450
5.5.15 15th Energy Level
NANA
Manganese
41987 97510
5.5.16 16th Energy Level
NANA
Iron
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt
52737 122200
5.5.18 18th Energy Level
NANA
Nickel
58570 134810
5.5.19 19th Energy Level
NANA
Copper
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum
127700 127700
5.5.27 27th Energy Level
NANA
Molybdenum
133800 133800
5.5.28 28th Energy Level
NANA
Molybdenum
139800 139800
5.5.29 29th Energy Level
NANA
Molybdenum
148100 148100
5.5.30 30th Energy Level
NANA
Molybdenum
154500 154500
5.6 Electrochemical Equivalent
NA2.18 g/amp-hr
Beryllium
0.16812 8.3209
5.7 Electron Work Function
NA3.30 eV
Cesium
2.14 5.65
5.8 Other Chemical Properties
NA
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
11171
Lithium
3 117
6.2 Electron Configuration
[Rn] 5f14 6d9 7s2
[Xe] 6s2 4f14 5d1
6.3 Crystal Structure
Body Centered Cubic (BCC)
Hexagonal Close Packed (HCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
11171
Lithium
3 117
6.4.2 Number of Neutrons
161104
Lithium
4 184
6.4.3 Number of Electrons
11171
Lithium
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
NA174.00 pm
Beryllium
112 265
6.5.2 Covalent Radius
NA187.00 pm
Beryllium
96 260
6.5.3 Van der Waals Radius
NA221.00 pm
Zinc
139 348
6.6 Atomic Weight
281.00 amu174.97 amu
Lithium
6.94 294
6.7 Atomic Volume
NA17.78 cm3/mol
Manganese
1.39 71.07
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
NA50.90 (-eV)
Francium
8 392.42
6.10 Lattice Constant
NA350.31 pm
Beryllium
228.58 891.25
6.11 Lattice Angles
NA
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
NA1.59
Beryllium
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
28.70 g/cm39.84 g/cm3
Lithium
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
NA9.30 g/cm3
Lithium
0.512 20
7.2 Tensile Strength
NANA
Indium
2.5 11000
7.3 Viscosity
NANA
Mercury
0.001526 0.001526
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
NA0.00 (Pa)
Cerium
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
NA3.18 (Pa)
Tungsten
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
NA27.20 GPa
Potassium
1.3 222
7.5.2 Bulk Modulus
NA47.60 GPa
Cesium
1.6 462
7.5.3 Young's Modulus
NA68.60 GPa
Cesium
1.7 528
7.6 Poisson Ratio
NA0.26
Beryllium
0.032 0.47
7.7 Other Mechanical Properties
Unknown
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
NA9.84
Lithium
0.53 4500
8.1.2 Magnetic Ordering
Unknown
Paramagnetic
8.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
8.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
8.2 Electrical Properties
8.2.1 Electrical Property
Unknown
Conductor
8.2.2 Resistivity
NA582.00 nΩ·m
Thallium
0.18 961
8.2.3 Electrical Conductivity
NA0.02 106/cm Ω
Plutonium
0.00666 0.63
8.2.4 Electron Affinity
NA50.00 kJ/mol
Mercury
0 222.8
9 Thermal
9.1 Specific Heat
NA0.15 J/(kg K)
Americium
0.11 3.6
9.2 Molar Heat Capacity
NA26.86 J/mol·K
Beryllium
16.443 62.7
9.3 Thermal Conductivity
NA16.40 W/m·K
Neptunium
6.3 429
9.4 Critical Temperature
NANA
Ytterbium
26.3 3223
9.5 Thermal Expansion
NA9.90 µm/(m·K)
Tungsten
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
NA355.90 kJ/mol
Zinc
7.32 799.1
9.6.2 Enthalpy of Fusion
NA18.70 kJ/mol
Cesium
2.1 35.23
9.6.3 Enthalpy of Atomization
NA398.00 kJ/mol
Mercury
61.5 837
1.2 Standard Molar Entropy
NA51.00 J/mol.K
Beryllium
9.5 198.1