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Tungsten vs Rutherfordium


Rutherfordium vs Tungsten


Periodic Table

Symbol
W   
Rf   

Group Number
6   
12
4   
14

Period Number
6   
7   

Block
d block   
d block   

Element Family
Transition Metal   
Transition Metal   

CAS Number
7440337   
99+
53850365   
13

Space Group Name
Im_ 3m   
Not Available   

Space Group Number
229.00   
1
Not Available   

Facts

Interesting Facts
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  
  • Rutherfordium does not occur in nature as it is a synthetic element.
  • Till date Rutherfordium metal has 15 radioisotopes created synthetically.
  

Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
Bombarding Plutonium with Accelerated 113 to 115 MeV Neon Ions, Synthetically Produced   

History
  
  

Who Discovered
Not Available   
Joint Institute for Nuclear Research   

Discovery
In 1781   
In 1964   

Abundance
  
  

Abundance In Universe
5 * 10-8 %   
27
Not Available   

Abundance In Sun
~0.0000004 %   
23
~-9999 %   

Abundance In Meteorites
0.00 %   
39
Not Available   

Abundance In Earth's Crust
0.00 %   
39
Not Available   

Abundance In Oceans
0.00 %   
18
Not Available   

Uses

Uses & Benefits
  • Tungsten and its alloys are used in high-temperature applications like welding electrodes, high-temperature furnace, etc.
  • Tungsten carbide is very hard and used in metal working, mining and petroleum industry.
  
  • Currently known uses of Rutherfordium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys, Research Purposes   

Biological Properties
  
  

Toxicity
Non Toxic   
Unknown   

Present in Human Body
Yes   
No   

In Blood
0.00 Blood/mg dm-3   
31
0.00 Blood/mg dm-3   
37

In Bone
0.00 p.p.m.   
35
0.00 p.p.m.   
36

Physical Properties

Melting Point
3,410.00 °C   
1
2,100.00 °C   
11

Boiling Point
5,660.00 °C   
1
5,500.00 °C   
3

Appearance
  
  

Physical State
Solid   
Solid   

Color
Grayish White   
Unknown   

Luster
Lustrous   
Unknown Luster   

Hardness
  
  

Mohs Hardness
7.50   
2
Not Available   

Brinell Hardness
2,000.00 MPa   
4
Not Available   

Vickers Hardness
3,430.00 MPa   
1
Not Available   

Speed of Sound
4,620.00 m/s   
16
Not Available   

Optical Properties
  
  

Reflectivity
62.00 %   
13
Not Available   

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
W   
Rf   

Isotopes
  
  

Known Isotopes
33   
6
13   
26

Electronegativity
  
  

Pauling Electronegativity
2.36   
2
Not Available   

Sanderson Electronegativity
0.98   
23
Not Available   

Allred Rochow Electronegativity
1.40   
19
Not Available   

Allen Electronegativity
1.47   
29
Not Available   

Electropositivity
  
  

Pauling Electropositivity
1.64   
99+
Not Available   

Ionization Energies
  
  

1st Energy Level
770.00 kJ/mol   
16
579.90 kJ/mol   
99+

2nd Energy Level
1,700.00 kJ/mol   
29
1,389.40 kJ/mol   
99+

3rd Energy Level
Not Available   
2,296.40 kJ/mol   
99+

4th Energy Level
Not Available   
3,077.90 kJ/mol   
99+

Electrochemical Equivalent
1.14 g/amp-hr   
99+
Not Available   

Electron Work Function
4.55 eV   
13
Not Available   

Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   

Atomic Properties

Atomic Number
74   
99+
104   
14

Electron Configuration
[Xe] 4f14 5d4 6s2   
[Rn] 5f14 6d2 7s2   

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
74   
99+
104   
14

Number of Neutrons
110   
27
157   
7

Number of Electrons
74   
99+
104   
14

Radius of an Atom
  
  

Atomic Radius
139.00 pm   
39
150.00 pm   
33

Covalent Radius
162.00 pm   
29
157.00 pm   
31

Van der Waals Radius
200.00 pm   
28
Not Available   

Atomic Weight
183.84 amu   
37
267.00 amu   
11

Atomic Volume
9.53 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Tantalum
  
Lawrencium
  

Next Element
Rhenium
  
Dubnium
  

Valence Electron Potential
140.00 (-eV)   
5
Not Available   

Lattice Constant
316.52 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
19.25 g/cm3   
16
23.20 g/cm3   
8

Density When Liquid (at m.p.)
17.60 g/cm3   
5
Not Available   

Tensile Strength
370.00 MPa   
10
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
0.00 (Pa)   
32
Not Available   

Elasticity properties
  
  

Shear Modulus
161.00 GPa   
5
Not Available   

Bulk Modulus
310.00 GPa   
4
Not Available   

Young's Modulus
411.00 GPa   
4
Not Available   

Poisson Ratio
0.28   
17
Not Available   

Other Mechanical Properties
Ductile, Malleable   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
19.22   
9
Not Available   

Magnetic Ordering
Paramagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Superconductor   
Unknown   

Resistivity
52.80 nΩ·m   
99+
Not Available   

Electrical Conductivity
0.19 106/cm Ω   
10
Not Available   

Electron Affinity
78.60 kJ/mol   
13
Not Available   

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
Not Available   

Molar Heat Capacity
24.27 J/mol·K   
99+
Not Available   

Thermal Conductivity
173.00 W/m·K   
7
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
4.50 µm/(m·K)   
99+
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
799.10 kJ/mol   
1
Not Available   

Enthalpy of Fusion
35.23 kJ/mol   
1
Not Available   

Enthalpy of Atomization
837.00 kJ/mol   
1
Not Available   

Standard Molar Entropy
32.60 J/mol.K   
99+
Not Available   

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