4
Be
Beryllium
9.01218315
Basic Information
Bohr Model
Descriptive Numbers
Mass
Periodic Position
Classification
Abundance
Color
Atomic Radius
Temperature
Density
Heat
Speed of Sound
Electrical Resistance
Magnetic Properties
Elasticity
Hardness
Etymology
Discovery & Isolation
Production & Use
Radioactivity
Electron Affinity
Dipole Polarity
Lattice
Electron & Quantum
List of Compounds
Basic Information
Name
Beryllium
Atomic Number
4
Appearance
White-grey metallic
Phase At STP
Solid
Spectrum Image
Source
WikipediaBohr Model
Static
Interactive
Descriptive Numbers
CAS Number
7440-41-7
CID Number
CID5460467
DOT Number
1567
RTECS Number
RTECSDS1750000
Mendeleev Number
75
Pettifor Number
77
Space Group Number
194
Glawe Number
77
Mass
Atomic Mass
9.01218315 Da
Uncertainty
5e-7
Periodic Position
X Position
2
Y Position
2
Period
2
Group
2
Classification
Block
s
Category
Alkaline Earth Metal
Geochemical
Alkali Toprak Metals
Goldschmidt
Lithophilic
Electrical Type
Conductive
Abundance
Urban Soil
0.0033 mg/kg
Seawater
5.6e-12 kg/L
Sun
4e-7 mole ratio to silicon
Earth Crust
0.0000028 g
Human Body
4e-8 %
Solar System
7e-7 mole ratio to silicon
Meteorites
0.0000029 %
Color
Jmol
#C2FF00
Molcas Gv
#C2FF00
CPK
#FF1493
Atomic Radius
Empirical
105
Calculated
112
Van Der Waals
153
Batsanov
190
Rahm
219
Uff
274.5
Mm3
223
Alvarez
198
Bragg
115
Truhlar
153
Covalent (Single Bound)
90
Covalent (Triple Bound)
85
Covalent (Cordero)
96
Covalent (Pyykko)
102
Covalent (Pyykko Double)
90
Covalent (Pyykko Triple)
85
Mendeleev
89
C12
112
Metallic
112
Temperature
Melting/Freeze (USE)
1560 °K
Melting/Freeze (WEL)
1560 °K
Melting/Freeze (CRC)
1560 °K
Melting/Freeze (LNG)
1560 °K
Boiling/Density (USE)
2742 °K
Boiling/Density (WEL)
2742 °K
Boiling/Density (CRC)
3242.85 °K
Boiling/Density (LNG)
2740 °K
Boiling/Density (Zhang)
3243 °K
Superconducting Point
0.03 °K
Density
STP
1.85 kg/cm³
Solid (WEL)
1848 kg/cm³
Solid (CRC)
1850 kg/cm³
Solid (LNG)
1847.7 kg/cm³
Liquid (CR2)
1690 kg/cm³
Heat
Molar Volume
4.85 cm³/mol
Atomic Volume
5 cm³
Heat Of Fusion USE
12.21 kJ/mol
Heat Of Fusion CRC
7.895 kJ/mol
Heat Of Fusion LNG
7.895 kJ/mol
Heat Of Fusion WEL
7.95 kJ/mol
Evaporation USE
309 kJ/mol
Evaporation LNG
297 kJ/mol
Evaporation WEL
297 kJ/mol
Evaporation Zhang
292 kJ/mol
Molar Heat
16.443 J/molK
Heat Capacity USE
1.824 J/gK
Heat Capacity CRC
16.443 J/gK
Heat Capacity LNG
16.38 J/gK
Heat Capacity WEL
16.4 J/gK
Thermal Conductivity
201 W/m*K
Thermal Expansion
0.0000113 1/K
Adiabatic Index
N/A
Speed of Sound
Longitudinal
12890 m/s
Transversal
8880 m/s
Extensional
12870 m/s
Electrical Resistance
80k
0.75 nΩm
273k
30.2 nΩm
293k
35.6 nΩm
298k
37 nΩm
300k
37.6 nΩm
500k
99 nΩm
Magnetic Properties
Order
Diamagnetic
Susceptibility
-1.3e-8 m3/kg
Elasticity
Shear Modulus
132 GPa
Bulk Modulus
130 GPa
Poisson Ratio
0.032 ν
Youngs Modulus
287 GPa
Hardness
Mohs
5.5
Brinell
590–1320
Vickers
1670
Etymology
Description
The second group member in the periodic table is a gray metal element. It is poisonous and can cause serious lung diseases and dermatitis. It shows highly covalent properties. In 1828 F. Wohler and A.A. They were isolated independently by Bussy.
Language Of Origin
Sanskrit, Pali and Prakrit through Greek, Latin, Old French and Medieval English
Origin Of Word
from the mineral beryl
Meaning
a blue-green crystal (beryllium aluminum cyclosilicate, Be3Al2(SiO3)6). Possibly associated with the city of Belur.
Symbol Origin
descriptor (color): beryl
Etymological Description
From the word beryllos, meaning beryl mineral containing beryllium. The word derives from Greek bērullos, designating a blue-green crystal stone, Prakrit veruliya, Pali veḷuriya, veḷiru or viḷar, meaning "to turn pale", referring to the pale semi-precious beryl stone. The word comes from the Sankstrite word vaidurya, which may ultimately be related to the Indian city of Belur.
Discovery & Isolation
Observed/Predicted By
N. Vauquelin
Observed/Discovery Year
1798
Discovery Location
Isolated Sample By
F. Wöhler ve A. Bussy
Isolated Sample Year
1828
Production & Use
Sources
It is mostly found in minerals such as beryl [AlBe3(Si6O18)] and chrysoberyl (Al2BeO4). Pure beryllium is obtained by chemical reduction of the mineral beryl. It can also be obtained by electrolysis of beryllium chloride.
Uses
Its ability to absorb high amounts of heat is used in spacecraft, rockets, airplanes, etc. This makes beryllium a useful material in the production of vehicles. Emeralds are beryl crystals that have a green color thanks to the small amount of chromium they contain.
Radioactivity
Half Life
Stable
Lifetime
Stable
Neutron Mass Absorption
0.00003
Neutron Cross Section
0.01
Electron Affinity
Electron Affinity (eV)
-2.4
Electron Affinity (kJ/mol)
-48
Electron Affinity (pauling)
1.57
Electron Affinity (allen)
9.323
Electron Affinity (ghosh)
0.144986
Dipole Polarity
Accepted
37.74
Uncertainty
0.03
C6 GB
214
C6 Coefficient
227
Lattice
Constant Internal Default Radius
2.29
Constant
228.58, 228.58, 358.43
Strucutre
HEX
Angles
π/2, π/2, 2 π/3
Electron & Quantum
Oxidation States
0,1,2
Electron Configuration
1s2 2s2
Quantum Number
1S0
Electron Configuration Semantic
[He] 2s2
Shells-0
2
Shells-1
2
Ionization Energies-0
899.5
Ionization Energies-1
1757.1
Ionization Energies-2
14848.7
Ionization Energies-3
21006.6
List of Compounds
1-10 of 42 compounds
| Formula | Names |
|---|---|
| Be | beryllium beryllium metal |
| B2Be | beryllium boride beryllium diboride |
| B6Be | beryllium hexaboride beryllium boride |
| BeBr2 | beryllium bromide beryllium dibromide |
| BeCl2 | beryllium chloride beryllium dichloride |
| BeF2 | beryllium fluoride beryllium difluoride fluoroberyllate |
| BeH2 | beryllium hydride beryllium dihydride |
| BeI2 | beryllium iodide beryllium diiodide |
| BeO | beryllium oxide beryllia beryllium monoxide ketoberyllium oxoberyllium Thermalox |
| BeS | beryllium sulfide beryllium monosulfide beryllium sulphide |
