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Molybdenum
Molybdenum

Technetium
Technetium



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Molybdenum vs Technetium

1 Periodic Table
1.1 Symbol
Mo
Tc
1.2 Group Number
Tennessine
6
Rank: 12 (Overall)
7
Rank: 11 (Overall)
Gadolinium
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1.3 Period Number
Uranium
5
Rank: 3 (Overall)
5
Rank: 3 (Overall)
Lithium
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1.4 Block
d block
d block
1.5 Element Family
Transition Metal
Transition Metal
1.6 CAS Number
Roentgenium
7439987
Rank: 80 (Overall)
7440268
Rank: 54 (Overall)
Aluminium
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1.7 Space Group Name
Im_ 3m
P63/mmc
1.8 Space Group Number
Sodium
229.00
Rank: 1 (Overall)
194.00
Rank: 5 (Overall)
Plutonium
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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.
  • Original name of Technetium was Masurium.
  • At the time of its discovery it found in sample of Molybdenum.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Made by Bombarding Molybdenum with Deuterons
2.3 History
2.3.1 Who Discovered
Carl Wilhelm Scheele
Emilio Segrè and Carlo Perriero
2.3.2 Discovery
In 1778
In 1937
2.4 Abundance
2.4.1 Abundance In Universe
Iron
5 * 10-7 %
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Thallium
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2.4.2 Abundance In Sun
Iron
~0.0000009 %
Rank: 19 (Overall)
~-9999 %
Rank: N/A (Overall)
Beryllium
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2.4.3 Abundance In Meteorites
Iron
0.00 %
Rank: 24 (Overall)
Not Available
Rank: N/A (Overall)
Gold
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2.4.4 Abundance In Earth's Crust
Aluminium
0.00 %
Rank: 39 (Overall)
Not Available
Rank: N/A (Overall)
Radium
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2.4.5 Abundance In Oceans
Sodium
0.00 %
Rank: 9 (Overall)
Not Available
Rank: N/A (Overall)
Protactinium
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2.4.6 Abundance In Humans
Calcium
0.00 %
Rank: 14 (Overall)
Not Available
Rank: N/A (Overall)
Radium
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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.
  • Technetium is a radioactive metal and hence it is used for medical studies and other research purposes.
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
Alloys, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Low Toxic
3.2.2 Present in Human Body
60% Transition Metals Metals have it !
60% Transition Metals Metals have it !
3.2.3 In Blood
Sodium
0.00 Blood/mg dm-3
Rank: 31 (Overall)
0.00 Blood/mg dm-3
Rank: 37 (Overall)
Plutonium
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3.2.4 In Bone
Calcium
0.70 p.p.m.
Rank: 18 (Overall)
0.00 p.p.m.
Rank: 36 (Overall)
Plutonium
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4 Physical
4.1 Melting Point
Tungsten
2,617.00 °C
Rank: 5 (Overall)
2,200.00 °C
Rank: 9 (Overall)
Francium
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4.2 Boiling Point
Tungsten
4,612.00 °C
Rank: 9 (Overall)
4,877.00 °C
Rank: 7 (Overall)
Flerovium
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4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Gray
Shiny Gray
4.3.3 Luster
Metallic
NA
4.4 Hardness
4.4.1 Mohs Hardness
Chromium
5.50
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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4.4.2 Brinell Hardness
Osmium
1,370.00 MPa
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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4.4.3 Vickers Hardness
Tungsten
1,400.00 MPa
Rank: 6 (Overall)
Not Available
Rank: N/A (Overall)
Palladium
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4.5 Speed of Sound
Technetium
5,400.00 m/s
Rank: 6 (Overall)
16,200.00 m/s
Rank: 1 (Overall)
Thallium
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4.6 Optical Properties
4.6.1 Refractive Index
Palladium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
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4.6.2 Reflectivity
Silver
58.00 %
Rank: 15 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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4.7 Allotropes
6% Transition Metals Metals have it !
6% Transition Metals Metals have it !
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
Tc
5.2 Isotopes
5.2.1 Known Isotopes
Palladium
25
Rank: 14 (Overall)
18
Rank: 21 (Overall)
Tennessine
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold
2.16
Rank: 5 (Overall)
1.90
Rank: 11 (Overall)
Francium
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5.3.2 Sanderson Electronegativity
Cobalt
1.15
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.3.3 Allred Rochow Electronegativity
Gallium
1.30
Rank: 24 (Overall)
1.36
Rank: 20 (Overall)
Cesium
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5.3.4 Mulliken-Jaffe Electronegativity
Polonium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.3.5 Allen Electronegativity
Berkelium
2.16
Rank: 3 (Overall)
1.51
Rank: 28 (Overall)
Cesium
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5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium
1.84
Rank: 48 (Overall)
2.10
Rank: 42 (Overall)
Gold
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5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium
684.30 kJ/mol
Rank: 37 (Overall)
702.00 kJ/mol
Rank: 36 (Overall)
Cesium
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5.5.2 2nd Energy Level
Chromium
1,560.00 kJ/mol
Rank: 37 (Overall)
1,470.00 kJ/mol
Rank: 41 (Overall)
Ruthenium
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5.5.3 3rd Energy Level
Chromium
2,618.00 kJ/mol
Rank: 43 (Overall)
2,850.00 kJ/mol
Rank: 33 (Overall)
Osmium
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5.5.4 4th Energy Level
Chromium
4,480.00 kJ/mol
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Thorium
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5.5.5 5th Energy Level
Chromium
5,257.00 kJ/mol
Rank: 32 (Overall)
Not Available
Rank: N/A (Overall)
Dubnium
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5.5.6 6th Energy Level
Chromium
6,640.80 kJ/mol
Rank: 22 (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium
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5.5.7 7th Energy level
Chromium
12,125.00 kJ/mol
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Bohrium
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5.5.8 8th Energy Level
Chromium
13,860.00 kJ/mol
Rank: 16 (Overall)
Not Available
Rank: N/A (Overall)
Hassium
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5.5.9 9th Energy Level
Chromium
15,835.00 kJ/mol
Rank: 16 (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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5.5.10 10th Energy Level
Chromium
17,980.00 kJ/mol
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Strontium
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5.5.11 11th Energy Level
Magnesium
20,190.00 kJ/mol
Rank: 17 (Overall)
Not Available
Rank: N/A (Overall)
Yttrium
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5.5.12 12th Energy Level
Magnesium
22,219.00 kJ/mol
Rank: 15 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.13 13th Energy Level
Titanium
26,930.00 kJ/mol
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.14 14th Energy Level
Vanadium
29,196.00 kJ/mol
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.15 15th Energy Level
Chromium
52,490.00 kJ/mol
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Manganese
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5.5.16 16th Energy Level
Manganese
55,000.00 kJ/mol
Rank: 8 (Overall)
Not Available
Rank: N/A (Overall)
Iron
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5.5.17 17th Energy Level
Iron
61,400.00 kJ/mol
Rank: 9 (Overall)
Not Available
Rank: N/A (Overall)
Cobalt
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5.5.18 18th Energy Level
Cobalt
67,700.00 kJ/mol
Rank: 9 (Overall)
Not Available
Rank: N/A (Overall)
Nickel
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5.5.19 19th Energy Level
Nickel
74,000.00 kJ/mol
Rank: 9 (Overall)
Not Available
Rank: N/A (Overall)
Copper
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5.5.20 20th Energy Level
Zinc
80,400.00 kJ/mol
Rank: 10 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.21 21st Energy Level
Zinc
87,000.00 kJ/mol
Rank: 9 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.22 22nd Energy Level
Copper
93,400.00 kJ/mol
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.23 23rd Energy Level
Copper
98,420.00 kJ/mol
Rank: 6 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.24 24th Energy Level
Iron
104,400.00 kJ/mol
Rank: 2 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
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5.5.25 25th Energy Level
Molybdenum
121,900.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.26 26th Energy Level
Molybdenum
127,700.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.27 27th Energy Level
Molybdenum
133,800.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.28 28th Energy Level
Molybdenum
139,800.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.29 29th Energy Level
Molybdenum
148,100.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.5.30 30th Energy Level
Molybdenum
154,500.00 kJ/mol
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum
5.6 Electrochemical Equivalent
Francium
0.89 g/amp-hr
Rank: 60 (Overall)
0.52 g/amp-hr
Rank: 68 (Overall)
Beryllium
ADD ⊕
5.7 Electron Work Function
Platinum
4.60 eV
Rank: 12 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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5.8 Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
6 Atomic
6.1 Atomic Number
Tennessine
42
Rank: 70 (Overall)
43
Rank: 69 (Overall)
Lithium
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6.2 Electron Configuration
[Kr] 4d5 5s1
[Kr] 4d5 5s2
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
Tennessine
42
Rank: 69 (Overall)
43
Rank: 68 (Overall)
Lithium
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6.4.2 Number of Neutrons
Flerovium
54
Rank: 52 (Overall)
55
Rank: 51 (Overall)
Lithium
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6.4.3 Number of Electrons
Tennessine
42
Rank: 69 (Overall)
43
Rank: 68 (Overall)
Lithium
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6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium
139.00 pm
Rank: 39 (Overall)
136.00 pm
Rank: 41 (Overall)
Beryllium
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6.5.2 Covalent Radius
Francium
154.00 pm
Rank: 32 (Overall)
147.00 pm
Rank: 37 (Overall)
Beryllium
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6.5.3 Van der Waals Radius
Francium
200.00 pm
Rank: 28 (Overall)
200.00 pm
Rank: 28 (Overall)
Zinc
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6.6 Atomic Weight
Tennessine
95.95 amu
Rank: 64 (Overall)
98.00 amu
Rank: 63 (Overall)
Lithium
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6.7 Atomic Volume
Cesium
9.40 cm3/mol
Rank: 51 (Overall)
8.50 cm3/mol
Rank: 57 (Overall)
Manganese
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6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
Platinum
88.60 (-eV)
Rank: 13 (Overall)
180.00 (-eV)
Rank: 3 (Overall)
Francium
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6.10 Lattice Constant
Manganese
314.70 pm
Rank: 57 (Overall)
273.50 pm
Rank: 65 (Overall)
Beryllium
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6.11 Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
6.12 Lattice C/A Ratio
Cadmium
Not Available
Rank: N/A (Overall)
1.60
Rank: 5 (Overall)
Beryllium
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7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium
10.28 g/cm3
Rank: 36 (Overall)
11.00 g/cm3
Rank: 34 (Overall)
Lithium
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7.1.2 Density When Liquid (at m.p.)
Osmium
9.33 g/cm3
Rank: 20 (Overall)
Not Available
Rank: N/A (Overall)
Lithium
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7.2 Tensile Strength
Iron
324.00 MPa
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Indium
ADD ⊕
7.3 Viscosity
Mercury
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
Strontium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cerium
ADD ⊕
7.4.2 Vapor Pressure at 2000 K
Chromium
0.00 (Pa)
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Tungsten
ADD ⊕
7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium
126.00 GPa
Rank: 8 (Overall)
Not Available
Rank: N/A (Overall)
Potassium
ADD ⊕
7.5.2 Bulk Modulus
Osmium
230.00 GPa
Rank: 6 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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7.5.3 Young's Modulus
Iridium
329.00 GPa
Rank: 6 (Overall)
Not Available
Rank: N/A (Overall)
Cesium
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7.6 Poisson Ratio
Gallium
0.31
Rank: 13 (Overall)
Not Available
Rank: N/A (Overall)
Beryllium
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7.7 Other Mechanical Properties
Ductile, Weldable
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt
10.22
Rank: 27 (Overall)
11.50
Rank: 24 (Overall)
Lithium
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8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth
ADD ⊕
8.1.4 Susceptibility
Iron
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth
ADD ⊕
8.2 Electrical Properties
8.2.1 Electrical Property
Semiconductor
Conductor
8.2.2 Resistivity
Mercury
53.40 nΩ·m
Rank: 41 (Overall)
200.00 nΩ·m
Rank: 18 (Overall)
Thallium
ADD ⊕
8.2.3 Electrical Conductivity
Silver
0.19 106/cm Ω
Rank: 11 (Overall)
0.07 106/cm Ω
Rank: 30 (Overall)
Plutonium
ADD ⊕
8.2.4 Electron Affinity
Gold
71.90 kJ/mol
Rank: 14 (Overall)
53.00 kJ/mol
Rank: 18 (Overall)
Mercury
ADD ⊕
9 Thermal
9.1 Specific Heat
Lithium
0.25 J/(kg K)
Rank: 21 (Overall)
0.21 J/(kg K)
Rank: 29 (Overall)
Americium
ADD ⊕
9.2 Molar Heat Capacity
Americium
24.06 J/mol·K
Rank: 54 (Overall)
24.27 J/mol·K
Rank: 52 (Overall)
Beryllium
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9.3 Thermal Conductivity
Silver
138.00 W/m·K
Rank: 12 (Overall)
50.60 W/m·K
Rank: 30 (Overall)
Neptunium
ADD ⊕
9.4 Critical Temperature
Lithium
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium
ADD ⊕
9.5 Thermal Expansion
Cesium
4.80 µm/(m·K)
Rank: 58 (Overall)
7.10 µm/(m·K)
Rank: 49 (Overall)
Tungsten
ADD ⊕
9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten
594.10 kJ/mol
Rank: 8 (Overall)
660.00 kJ/mol
Rank: 6 (Overall)
Zinc
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9.6.2 Enthalpy of Fusion
Tungsten
27.61 kJ/mol
Rank: 5 (Overall)
23.01 kJ/mol
Rank: 9 (Overall)
Cesium
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9.6.3 Enthalpy of Atomization
Tungsten
653.00 kJ/mol
Rank: 7 (Overall)
649.00 kJ/mol
Rank: 8 (Overall)
Mercury
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9.7 Standard Molar Entropy
Protactinium
28.70 J/mol.K
Rank: 53 (Overall)
181.10 J/mol.K
Rank: 2 (Overall)
Beryllium
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