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Beryllium vs Tungsten


Tungsten vs Beryllium


Periodic Table

Symbol
Be   
W   

Group Number
2   
16
6   
12

Period Number
2   
6   

Block
s block   
d block   

Element Family
Alkaline Earth   
Transition Metal   

CAS Number
7440417   
99+
7440337   
99+

Space Group Name
P63/mmc   
Im_ 3m   

Space Group Number
194.00   
5
229.00   
1

Facts

Interesting Facts
  • Beryllium is best anti corrosion metal.
  • Beryllium is the lightest metal and still it is stronger than steel.
  • It also finds various applications in Nuclear reactors as a reflector.
  
  • Tungsten element has the second highest melting point.
  • Pure tungsten can easily cut down with the help of hacksaw.
  

Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Louis Nicolas Vauquelin   
Not Available   

Discovery
In 1797   
In 1781   

Abundance
  
  

Abundance In Universe
1 * 10-7 %   
23
5 * 10-8 %   
27

Abundance In Sun
~0.00000001 %   
29
~0.0000004 %   
23

Abundance In Meteorites
0.00 %   
99+
0.00 %   
39

Abundance In Earth's Crust
0.00 %   
35
0.00 %   
39

Abundance In Oceans
0.00 %   
39
0.00 %   
18

Abundance In Humans
0.00 %   
19
Not Available   

Uses

Uses & Benefits
  • Its alloys with copper or nickel are used in manufacturing Gyroscopes, springs, electrical contact and non sparking tools.
  • Beryllium Alloys are used as a material for aircraft, missiles, spacecraft and satellite.
  
  • 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.
  

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

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Non Toxic   

Present in Human Body
Yes   
Yes   

In Blood
0.00 Blood/mg dm-3   
32
0.00 Blood/mg dm-3   
31

In Bone
0.00 p.p.m.   
32
0.00 p.p.m.   
35

Physical Properties

Melting Point
1,278.00 °C   
36
3,410.00 °C   
1

Boiling Point
2,970.00 °C   
32
5,660.00 °C   
1

Appearance
  
  

Physical State
Solid   
Solid   

Color
White Gray   
Grayish White   

Luster
Metallic   
Lustrous   

Hardness
  
  

Mohs Hardness
5.50   
7
7.50   
2

Brinell Hardness
590.00 MPa   
21
2,000.00 MPa   
4

Vickers Hardness
1,670.00 MPa   
4
3,430.00 MPa   
1

Speed of Sound
12,890.00 m/s   
2
4,620.00 m/s   
16

Optical Properties
  
  

Reflectivity
Not Available   
62.00 %   
13

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
Be   
W   

Isotopes
  
  

Known Isotopes
9   
29
33   
6

Electronegativity
  
  

Pauling Electronegativity
1.57   
24
2.36   
2

Sanderson Electronegativity
1.81   
12
0.98   
23

Allred Rochow Electronegativity
1.47   
14
1.40   
19

Mulliken-Jaffe Electronegativity
1.54   
12
Not Available   

Allen Electronegativity
1.58   
23
1.47   
29

Electropositivity
  
  

Pauling Electropositivity
2.43   
30
1.64   
99+

Ionization Energies
  
  

1st Energy Level
899.50 kJ/mol   
7
770.00 kJ/mol   
16

2nd Energy Level
1,757.10 kJ/mol   
23
1,700.00 kJ/mol   
29

3rd Energy Level
14,848.70 kJ/mol   
2
Not Available   

4th Energy Level
21,006.60 kJ/mol   
2
Not Available   

Electrochemical Equivalent
0.17 g/amp-hr   
99+
1.14 g/amp-hr   
99+

Electron Work Function
4.98 eV   
6
4.55 eV   
13

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

Atomic Properties

Atomic Number
4   
99+
74   
99+

Electron Configuration
[He] 2s2   
[Xe] 4f14 5d4 6s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
4   
99+
74   
99+

Number of Neutrons
5   
99+
110   
27

Number of Electrons
4   
99+
74   
99+

Radius of an Atom
  
  

Atomic Radius
112.00 pm   
99+
139.00 pm   
39

Covalent Radius
96.00 pm   
99+
162.00 pm   
29

Van der Waals Radius
153.00 pm   
99+
200.00 pm   
28

Atomic Weight
9.01 amu   
99+
183.84 amu   
37

Atomic Volume
5.00 cm3/mol   
99+
9.53 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Lithium
  
Tantalum
  

Next Element
Sodium
  
Rhenium
  

Valence Electron Potential
82.00 (-eV)   
15
140.00 (-eV)   
5

Lattice Constant
228.58 pm   
99+
316.52 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   

Lattice C/A Ratio
1.57   
18
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
1.85 g/cm3   
99+
19.25 g/cm3   
16

Density When Liquid (at m.p.)
1.69 g/cm3   
99+
17.60 g/cm3   
5

Tensile Strength
Not Available   
370.00 MPa   
10

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
19
Not Available   

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

Elasticity properties
  
  

Shear Modulus
132.00 GPa   
7
161.00 GPa   
5

Bulk Modulus
130.00 GPa   
13
310.00 GPa   
4

Young's Modulus
287.00 GPa   
7
411.00 GPa   
4

Poisson Ratio
0.03   
35
0.28   
17

Other Mechanical Properties
NA   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
1.85   
99+
19.22   
9

Magnetic Ordering
Diamagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Superconductor   

Resistivity
36.00 nΩ·m   
99+
52.80 nΩ·m   
99+

Electrical Conductivity
0.31 106/cm Ω   
5
0.19 106/cm Ω   
10

Electron Affinity
0.00 kJ/mol   
40
78.60 kJ/mol   
13

Thermal Properties

Specific Heat
1.82 J/(kg K)   
2
0.13 J/(kg K)   
39

Molar Heat Capacity
16.44 J/mol·K   
99+
24.27 J/mol·K   
99+

Thermal Conductivity
200.00 W/m·K   
6
173.00 W/m·K   
7

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
11.30 µm/(m·K)   
34
4.50 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
294.70 kJ/mol   
30
799.10 kJ/mol   
1

Enthalpy of Fusion
11.72 kJ/mol   
30
35.23 kJ/mol   
1

Enthalpy of Atomization
326.40 kJ/mol   
30
837.00 kJ/mol   
1

Standard Molar Entropy
9.50 J/mol.K   
99+
32.60 J/mol.K   
99+

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