Be Element

Beryllium

Periodic Table

Symbol

Group Number

2 16

Period Number

2 6

Block

s block

Element Family

Alkaline Earth

CAS Number

7440417 43

Space Group Name

P63/mmc

Space Group Number

194.00 7

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.

Sources

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

History

Who Discovered

Louis Nicolas Vauquelin

Discovery

In 1797

Abundance

Abundance In Universe

0.00 % 24

Abundance In Sun

0.00 % 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 % 22

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.

Industrial Uses

Aerospace Industry, Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry

Medical Uses

Other Uses

Alloys

Biological Properties

Toxicity

Toxic

Present in Human Body

Yes

In Blood

0.00 Blood/mg dm-3 35

In Bone

0.00 p.p.m. 37

Physical

Melting Point

1,278.00 °C 36

Boiling Point

2,970.00 °C 33

Appearance

Physical State

Solid

Color

White Gray

Luster

Metallic

Hardness

Mohs Hardness

5.50 7

Brinell Hardness

590.00 MPa 25

Vickers Hardness

1,670.00 MPa 9

Speed of Sound

12,890.00 m/s 2

Optical Properties

Refractive Index

1.56 34

Reflectivity

65.00 % 18

Allotropes

α Allotropes

β Allotropes

γ Allotropes

Chemical

Chemical Formula

Isotopes

Known Isotopes

9 29

Electronegativity

Pauling Electronegativity

1.57 25

Sanderson Electronegativity

1.81 15

Allred Rochow Electronegativity

1.47 15

Mulliken-Jaffe Electronegativity

1.54 24

Allen Electronegativity

1.58 26

Electropositivity

Pauling Electropositivity

2.43 30

Ionization Energies

1st Energy Level

899.50 kJ/mol 7

2nd Energy Level

1,757.10 kJ/mol 24

3rd Energy Level

14,848.70 kJ/mol 2

4th Energy Level

21,006.60 kJ/mol 2

5th Energy Level

2,970.00 kJ/mol 86

6th Energy Level

1,470.00 kJ/mol 90

7th Energy level

2,970.00 kJ/mol 86

8th Energy Level

2,970.00 kJ/mol 83

9th Energy Level

2,970.00 kJ/mol 84

10th Energy Level

2,970.00 kJ/mol 78

11th Energy Level

2,970.00 kJ/mol 86

12th Energy Level

29,700.00 kJ/mol 35

13th Energy Level

2,970.00 kJ/mol 82

14th Energy Level

2,970.00 kJ/mol 60

15th Energy Level

89,900.00 kJ/mol 5

16th Energy Level

89,900.00 kJ/mol 8

17th Energy Level

2,970.00 kJ/mol 14

18th Energy Level

8,995.00 kJ/mol 13

19th Energy Level

899.50 kJ/mol 22

20th Energy Level

899.00 kJ/mol 12

21st Energy Level

2,970.00 kJ/mol 26

22nd Energy Level

899.00 kJ/mol 10

23rd Energy Level

2,970.00 kJ/mol 31

24th Energy Level

297.30 kJ/mol 90

25th Energy Level

2,970.00 kJ/mol 2

26th Energy Level

2,970.00 kJ/mol 2

27th Energy Level

297.30 kJ/mol 85

28th Energy Level

297.30 kJ/mol 88

29th Energy Level

2,970.00 kJ/mol 2

30th Energy Level

2,970.00 kJ/mol 2

Electrochemical Equivalent

0.17 g/amp-hr 80

Electron Work Function

4.98 eV 10

Other Chemical Properties

Corrosion, Ionization, Radioactive Isotopes

Atomic

Atomic Number

4 91

Electron Configuration

[He] 2s²

Crystal Structure

Hexagonal Close Packed (HCP)

Crystal Lattice

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

Atom

Number of Protons

4 90

Number of Neutrons

5 68

Number of Electrons

4 90

Radius of an Atom

Atomic Radius

112.00 pm 53

Covalent Radius

96.00 pm 57

Van der Waals Radius

153.00 pm 50

Atomic Weight

9.01 amu 85

Atomic Volume

5.00 cm3/mol 81

Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

82.00 (-eV) 15

Lattice Constant

228.58 pm 76

Lattice Angles

π/2, π/2, π/2

Lattice C/A Ratio

1.57 42

Mechanical

Density

Density At Room Temperature

1.85 g/cm³ 83

Density When Liquid (at m.p.)

1.69 g/cm3 84

Tensile Strength

287.00 MPa 16

Viscosity

0.00 17

Vapor Pressure

Vapor Pressure at 1000 K

0.00 (Pa) 20

Vapor Pressure at 2000 K

0.00 (Pa) 24

Elasticity properties

Shear Modulus

132.00 GPa 7

Bulk Modulus

130.00 GPa 13

Young's Modulus

287.00 GPa 7

Poisson Ratio

0.03 36

Other Mechanical Properties

Magnetic

Magnetic Characteristics

Specific Gravity

1.85 81

Magnetic Ordering

Diamagnetic

Permeability

0.00 H/m 12

Susceptibility

0.00 11

Electrical Properties

Electrical Property

Semiconductor

Resistivity

36.00 nΩ·m 48

Electrical Conductivity

0.31 10⁶/cm Ω 5

Electron Affinity

0.00 kJ/mol 49

Thermal

Specific Heat

1.82 J/(kg K) 2

Molar Heat Capacity

16.44 J/mol·K 68

Thermal Conductivity

200.00 W/m·K 6

Critical Temperature

1,551.00 K 39

Thermal Expansion

11.30 µm/(m·K) 47

Enthalpy

Enthalpy of Vaporization

294.70 kJ/mol 48

Enthalpy of Fusion

11.72 kJ/mol 36

Enthalpy of Atomization

326.40 kJ/mol 40

Standard Molar Entropy

9.50 J/mol.K 75

Summary >>

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