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What is Beryllium?
Beryllium


Periodic Table
0
Symbol
Be 0
Group Number
2 16
Period Number
2 6
Block
s block 0
Element Family
Alkaline Earth 0
CAS Number
7440417 43
Space Group Name
P63/mmc 0
Space Group Number
194.00 5
Facts
0
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.
0
Sources
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals 0
History
0
Who Discovered
Louis Nicolas Vauquelin 0
Discovery
In 1797 0
Abundance
0
Abundance In Universe
1 * 10-7 % 23
Abundance In Sun
~0.00000001 % 29
Abundance In Meteorites
0.00 % 47
Abundance In Earth's Crust
0.00 % 35
Abundance In Oceans
0.00 % 39
Abundance In Humans
0.00 % 19
Uses
0
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.
0
Industrial Uses
Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry 0
Medical Uses
NA 0
Other Uses
Alloys 0
Biological Properties
0
Toxicity
Toxic 0
Present in Human Body
Yes 0
In Blood
0.00 Blood/mg dm-3 32
In Bone
0.00 p.p.m. 32
Physical
0
Melting Point
1,278.00 °C 36
Boiling Point
2,970.00 °C 32
Appearance
0
Physical State
Solid 0
Color
White Gray 0
Luster
Metallic 0
Hardness
0
Mohs Hardness
5.50 7
Brinell Hardness
590.00 MPa 21
Vickers Hardness
1,670.00 MPa 4
Speed of Sound
12,890.00 m/s 2
Optical Properties
0
Refractive Index
Not Available 0
Reflectivity
Not Available 0
Allotropes
No 0
α Allotropes
Not Available 0
β Allotropes
Not Available 0
γ Allotropes
Not Available 0
Chemical
0
Chemical Formula
Be 0
Isotopes
0
Known Isotopes
9 29
Electronegativity
0
Pauling Electronegativity
1.57 24
Sanderson Electronegativity
1.81 12
Allred Rochow Electronegativity
1.47 14
Mulliken-Jaffe Electronegativity
1.54 12
Allen Electronegativity
1.58 23
Electropositivity
0
Pauling Electropositivity
2.43 30
Ionization Energies
0
1st Energy Level
899.50 kJ/mol 7
2nd Energy Level
1,757.10 kJ/mol 23
3rd Energy Level
14,848.70 kJ/mol 2
4th Energy Level
21,006.60 kJ/mol 2
5th Energy Level
Not Available 0
6th Energy Level
Not Available 0
7th Energy level
Not Available 0
8th Energy Level
Not Available 0
9th Energy Level
Not Available 0
10th Energy Level
Not Available 0
11th Energy Level
Not Available 0
12th Energy Level
Not Available 0
13th Energy Level
Not Available 0
14th Energy Level
Not Available 0
15th Energy Level
Not Available 0
16th Energy Level
Not Available 0
17th Energy Level
Not Available 0
18th Energy Level
Not Available 0
19th Energy Level
Not Available 0
20th Energy Level
Not Available 0
21st Energy Level
Not Available 0
22nd Energy Level
Not Available 0
23rd Energy Level
Not Available 0
24th Energy Level
Not Available 0
25th Energy Level
Not Available 0
26th Energy Level
Not Available 0
27th Energy Level
Not Available 0
28th Energy Level
Not Available 0
29th Energy Level
Not Available 0
30th Energy Level
Not Available 0
Electrochemical Equivalent
0.17 g/amp-hr 76
Electron Work Function
4.98 eV 6
Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes 0
Atomic
0
Atomic Number
4 91
Electron Configuration
[He] 2s2 0
Crystal Structure
Hexagonal Close Packed (HCP) 0
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100 0
Atom
0
Number of Protons
4 90
Number of Neutrons
5 67
Number of Electrons
4 90
Radius of an Atom
0
Atomic Radius
112.00 pm 51
Covalent Radius
96.00 pm 54
Van der Waals Radius
153.00 pm 43
Atomic Weight
9.01 amu 85
Atomic Volume
5.00 cm3/mol 63
Adjacent Atomic Numbers
0
Previous Element
19 0
Next Element
4 0
Valence Electron Potential
82.00 (-eV) 15
Lattice Constant
228.58 pm 69
Lattice Angles
π/2, π/2, π/2 0
Lattice C/A Ratio
1.57 18
Mechanical
0
Density
0
Density At Room Temperature
1.85 g/cm3 78
Density When Liquid (at m.p.)
1.69 g/cm3 54
Tensile Strength
Not Available 0
Viscosity
Not Available 0
Vapor Pressure
0
Vapor Pressure at 1000 K
0.00 (Pa) 19
Vapor Pressure at 2000 K
Not Available 0
Elasticity properties
0
Shear Modulus
132.00 GPa 7
Bulk Modulus
130.00 GPa 13
Young's Modulus
287.00 GPa 7
Poisson Ratio
0.03 35
Other Mechanical Properties
NA 0
Magnetic
0
Magnetic Characteristics
0
Specific Gravity
1.85 65
Magnetic Ordering
Diamagnetic 0
Permeability
Not Available 0
Susceptibility
Not Available 0
Electrical Properties
0
Electrical Property
Semiconductor 0
Resistivity
36.00 nΩ·m 47
Electrical Conductivity
0.31 106/cm Ω 5
Electron Affinity
0.00 kJ/mol 40
Thermal
0
Specific Heat
1.82 J/(kg K) 2
Molar Heat Capacity
16.44 J/mol·K 56
Thermal Conductivity
200.00 W/m·K 6
Critical Temperature
Not Available 0
Thermal Expansion
11.30 µm/(m·K) 34
Enthalpy
0
Enthalpy of Vaporization
294.70 kJ/mol 30
Enthalpy of Fusion
11.72 kJ/mol 30
Enthalpy of Atomization
326.40 kJ/mol 30
Standard Molar Entropy
9.50 J/mol.K 58
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