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Molybdenum
Molybdenum

Roentgenium
Roentgenium



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Molybdenum
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Roentgenium

Molybdenum vs Roentgenium

1 Periodic Table
1.1 Symbol
Mo
Rg
1.2 Group Number
611
Gadolinium
0 17
1.3 Period Number
57
Lithium
2 7
1.4 Block
d block
d block
1.5 Element Family
Transition Metal
Unknown
1.6 CAS Number
743998754386242
Aluminium
7429905 54386242
1.7 Space Group Name
Im_ 3m
Not Available
1.8 Space Group Number
229.00194.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • Molybdenum is highly reactive metal, hence not found free in nature .
  • Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
Not Available
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Synthetically Produced
2.3 History
2.3.1 Who Discovered
Carl Wilhelm Scheele
Gesellschaft für Schwerionenforschung
2.3.2 Discovery
In 1778
In 1994
2.4 Abundance
2.4.1 Abundance In Universe
5 * 10-7 %NA
Thallium
5E-09 0.11
2.4.2 Abundance In Sun
~0.0000009 %~-9999 %
Beryllium
1E-08 0.1
2.4.3 Abundance In Meteorites
0.00 %NA
Gold
1.7E-07 22
2.4.4 Abundance In Earth's Crust
0.00 %NA
Radium
9.9E-12 8.1
2.4.5 Abundance In Oceans
0.00 %NA
Protactinium
2E-23 1.1
2.4.6 Abundance In Humans
0.00 %NA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Its alloys are used to make engine parts, drills, saw blade, etc.
  • Lubricant additive made up of Molybdenum disulfide is commonly used in the industry. It is also used as a catalyst.
  • Currently known uses of Roentgenium metal are limited to research purpose only.
3.1.1 Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Unknown
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium
0 1970
3.2.4 In Bone
0.70 p.p.m.0.00 p.p.m.
Plutonium
0 170000
4 Physical
4.1 Melting Point
2,617.00 °CNA
Francium
27 3410
4.2 Boiling Point
4,612.00 °CNA
Flerovium
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Gray
Silver
4.3.3 Luster
Metallic
Unknown Luster
4.4 Hardness
4.4.1 Mohs Hardness
5.50NA
Cesium
0.2 8.5
4.4.2 Brinell Hardness
1,370.00 MPaNA
Cesium
0.14 3490
4.4.3 Vickers Hardness
1,400.00 MPaNA
Palladium
121 3430
4.5 Speed of Sound
5,400.00 m/sNA
Thallium
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury
1.000933 1.7229
4.6.2 Reflectivity
58.00 %NA
Silver
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
Mo
Rg
5.2 Isotopes
5.2.1 Known Isotopes
251
Tennessine
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
2.16NA
Francium
0.7 2.54
5.3.2 Sanderson Electronegativity
1.15NA
Cesium
0.22 2.56
5.3.3 Allred Rochow Electronegativity
1.30NA
Cesium
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
5.3.5 Allen Electronegativity
2.16NA
Cesium
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
1.84NA
Gold
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
684.30 kJ/mol1,022.70 kJ/mol
Cesium
375.7 26130
5.5.2 2nd Energy Level
1,560.00 kJ/mol2,074.40 kJ/mol
Ruthenium
710.2162 28750
5.5.3 3rd Energy Level
2,618.00 kJ/mol3,077.90 kJ/mol
Osmium
1600 34230
5.5.4 4th Energy Level
4,480.00 kJ/mol4,052.40 kJ/mol
Thorium
2780 37066
5.5.5 5th Energy Level
5,257.00 kJ/mol5,306.70 kJ/mol
Dubnium
4305.2 97510
5.5.6 6th Energy Level
6,640.80 kJ/molNA
Seaborgium
5715.8 105800
5.5.7 7th Energy level
12,125.00 kJ/molNA
Bohrium
7226.8 114300
5.5.8 8th Energy Level
13,860.00 kJ/molNA
Hassium
8857.4 125300
5.5.9 9th Energy Level
15,835.00 kJ/molNA
Yttrium
14110 134700
5.5.10 10th Energy Level
17,980.00 kJ/molNA
Strontium
17100 144300
5.5.11 11th Energy Level
20,190.00 kJ/molNA
Yttrium
19900 169988
5.5.12 12th Energy Level
22,219.00 kJ/molNA
Copper
22219 189368
5.5.13 13th Energy Level
26,930.00 kJ/molNA
Vanadium
26930 76015
5.5.14 14th Energy Level
29,196.00 kJ/molNA
Iron
29196 86450
5.5.15 15th Energy Level
52,490.00 kJ/molNA
Manganese
41987 97510
5.5.16 16th Energy Level
55,000.00 kJ/molNA
Iron
47206 109480
5.5.17 17th Energy Level
61,400.00 kJ/molNA
Cobalt
52737 122200
5.5.18 18th Energy Level
67,700.00 kJ/molNA
Nickel
58570 134810
5.5.19 19th Energy Level
74,000.00 kJ/molNA
Copper
64702 148700
5.5.20 20th Energy Level
80,400.00 kJ/molNA
Zinc
80400 171200
5.5.21 21st Energy Level
87,000.00 kJ/molNA
Zinc
87000 179100
5.5.22 22nd Energy Level
93,400.00 kJ/molNA
Copper
93400 184900
5.5.23 23rd Energy Level
98,420.00 kJ/molNA
Copper
98420 198800
5.5.24 24th Energy Level
104,400.00 kJ/molNA
Iron
104400 195200
5.5.25 25th Energy Level
121,900.00 kJ/molNA
121900 121900
5.5.26 26th Energy Level
127,700.00 kJ/molNA
127700 127700
5.5.27 27th Energy Level
133,800.00 kJ/molNA
133800 133800
5.5.28 28th Energy Level
139,800.00 kJ/molNA
139800 139800
5.5.29 29th Energy Level
148,100.00 kJ/molNA
148100 148100
5.5.30 30th Energy Level
154,500.00 kJ/molNA
154500 154500
5.6 Electrochemical Equivalent
0.89 g/amp-hrNA
Beryllium
0.16812 8.3209
5.7 Electron Work Function
4.60 eVNA
Cesium
2.14 5.65
5.8 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
NA
6 Atomic
6.1 Atomic Number
42111
Lithium
3 117
6.2 Electron Configuration
[Kr] 4d5 5s1
[Rn] 5f14 6d9 7s2
6.3 Crystal Structure
Body Centered Cubic (BCC)
Body Centered Cubic (BCC)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
42111
Lithium
3 117
6.4.2 Number of Neutrons
54161
Lithium
4 184
6.4.3 Number of Electrons
42111
Lithium
3 117
6.5 Radius of an Atom
6.5.1 Atomic Radius
139.00 pmNA
Beryllium
112 265
6.5.2 Covalent Radius
154.00 pmNA
Beryllium
96 260
6.5.3 Van der Waals Radius
200.00 pmNA
Zinc
139 348
6.6 Atomic Weight
95.95 amu281.00 amu
Lithium
6.94 294
6.7 Atomic Volume
9.40 cm3/molNA
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
88.60 (-eV)NA
Francium
8 392.42
6.10 Lattice Constant
314.70 pmNA
Beryllium
228.58 891.25
6.11 Lattice Angles
π/2, π/2, π/2
NA
6.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
10.28 g/cm328.70 g/cm3
Lithium
0.534 40.7
7.1.2 Density When Liquid (at m.p.)
9.33 g/cm3NA
Lithium
0.512 20
7.2 Tensile Strength
324.00 MPaNA
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
NANA
Cerium
2.47E-11 121
7.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten
2.62E-10 774
7.5 Elasticity properties
7.5.1 Shear Modulus
126.00 GPaNA
Potassium
1.3 222
7.5.2 Bulk Modulus
230.00 GPaNA
Cesium
1.6 462
7.5.3 Young's Modulus
329.00 GPaNA
Cesium
1.7 528
7.6 Poisson Ratio
0.31NA
Beryllium
0.032 0.47
7.7 Other Mechanical Properties
Ductile, Weldable
Unknown
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
10.22NA
Lithium
0.53 4500
8.1.2 Magnetic Ordering
Paramagnetic
Unknown
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
Semiconductor
Unknown
8.2.2 Resistivity
53.40 nΩ·mNA
Thallium
0.18 961
8.2.3 Electrical Conductivity
0.19 106/cm ΩNA
Plutonium
0.00666 0.63
8.2.4 Electron Affinity
71.90 kJ/molNA
Mercury
0 222.8
9 Thermal
9.1 Specific Heat
0.25 J/(kg K)NA
Americium
0.11 3.6
9.2 Molar Heat Capacity
24.06 J/mol·KNA
Beryllium
16.443 62.7
9.3 Thermal Conductivity
138.00 W/m·KNA
Neptunium
6.3 429
9.4 Critical Temperature
NANA
Ytterbium
26.3 3223
9.5 Thermal Expansion
4.80 µm/(m·K)NA
Tungsten
4.5 97
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
594.10 kJ/molNA
Zinc
7.32 799.1
9.6.2 Enthalpy of Fusion
27.61 kJ/molNA
Cesium
2.1 35.23
9.6.3 Enthalpy of Atomization
653.00 kJ/molNA
Mercury
61.5 837
9.7 Standard Molar Entropy
28.70 J/mol.KNA
Beryllium
9.5 198.1