Beryllium Elemental Symbol

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Béryllium Beryllium Berillio Berílio Berílio Beryllium

Beryllium(Be) atomic and molecular weight, atomic number and elemental symbol Beryllium is a Block S, Group 2, Period 2 element. The number of electrons in each of Beryllium's shells is 2, 2 and its electron configuration is [He] 2s2. The beryllium atom has a radius of and it's Van der Waals radius is In its elemental form, CAS 7440-41-7, beryllium has a white-gray metallic appearance. Elemental BerylliumBeryllium Bohr ModelBeryllium is found in bertrandite (Be4Si2O7(OH)2), beryl (Al2Be3Si6O18), chrysoberyl (Al2BeO4) and phenakite (Be2SiO4). The most common source for commercial production of Beryllium is Beryl. Beryllium was discovered by Louis Nicolas Vauquelin in 1797. It was first isolated by Friedrich Wöhler & Antoine Bussy in 1828. The origin of the name Beryllium comes from the Greek word 'beryllos' meaning beryl.

Beryllium is a fairly soft metal that is brittle yet strong. It is used as a coating on X-ray tubes because it is transparent to the X-ray range. It also has military and nuclear industry applications. High Purity (99.999%) Beryllium (Be) Sputtering TargetBeryllium is available as metal and compounds with purities from 99% to 99.999% (ACS grade to ultra-high purity). High Purity (99.999%) Beryllium Oxide (BeO) PowderElemental or metallic forms include pellets, rod, wire and granules for evaporation source material purposes. Beryllium nanoparticles and nanopowders provide ultra-high surface area which nanotechnology research and recent experiments demonstrate function to create new and unique properties and benefits. Oxides are available in powder and dense pellet form for such uses as optical coating and thin film applications. Oxides tend to be insoluble. Fluorides are another insoluble form for uses in which oxygen is undesirable such as metallurgy, chemical and physical vapor deposition and in some optical coatings. Beryllium is also available in soluble forms including chlorides, nitrates and acetates. These compounds can be manufactured as solutions at specified stoichiometries.

Beryllium and its salts are toxic as well as carcinogenic. Safety data for Beryllium and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the Products tab below.

  • Properties
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Beryllium Properties

Symbol: Be Melting Point: 1287 oC, 2348.6 oF, 1560.15 K
Atomic Number: 4 Boiling Point: 2468 oC, 4474.4 oF, 2741.15 K
Atomic Weight: 9.012 Density: 1.848 gm/cc
Element Category: alkaline earth metal Liquid Density @ Melting Point: 1.690 g·cm−3
Group, Period, Block: 2, 2, s Specific Heat: 0.436 Cal/g/K @ 25 °C
    Heat of Vaporization 308.8 kJ mol-1
CHEMICAL STRUCTURE Heat of Fusion 9.8 kJ mol-1
Electrons: 4 Thermal Conductivity: 2.01 W/cm/K @ 298.2 K
Protons: 4 Thermal Expansion: (25 °C) 11.3 µm·m−1·K−1
Neutrons: 5 Electrical Resistivity: 4.0 microhm-cm @ 20°C
Electron Configuration: [He]2s2 Electronegativity: 1.5 Paulings
Atomic Radius: 112 pm Tensile Strength: N/A
Covalent Radius: 96±3 pm Molar Heat Capacity: 16.443 J·mol−1·K−1
Van der Waals radius: 153 pm Young's Modulus: 287 GPa
Oxidation States: 2, 1 (amphoteric oxide) Shear Modulus: 132 GPa
Phase: Solid Bulk Modulus: 130 GPa
Crystal Structure: hexagonal close-packed Poisson Ratio: 0.032
Magnetic Ordering: diamagnetic Mohs Hardness: 5.5
1st Ionization Energy: 899.51 kJ mol-1 Vickers Hardness: 1670 MPa
2nd Ionization Energy: 1757.12 kJ mol-1 Brinell Hardness: 600 MPa
3rd Ionization Energy: 14848.87 kJ mol-1 Speed of Sound: (r.t.) 12870 m·s−1
CAS Number: 7440-41-7 Abundance in typical human body, by weight: 0.4 ppb
ChemSpider ID: 4573986 Abundance in typical human body, by atom: 0.3 ppb
PubChem CID: 5460467 Abundance in universe, by weight: 1 ppb
MDL Number: MFCD00134032 Abundance in universe, by atom: 0.1 ppb
EC Number: 231-150-7 Discovered By: Louis Nicolas Vauquelin
Beilstein Number: N/A Discovery Date: 1797
SMILES Identifier: [BeH2]  
InChI Identifier: InChI=1S/Be Other Names: Berílio

Health, Safety & Transportation Information for Beryllium

Material Safety Data Sheet MSDS
Signal Word Danger
Hazard Statements H301-H315-H317-H319-H330-H335-H350i-H372
Hazard Codes T+
Risk Codes 49-25-26-36/37/38-43-48/23
Safety Precautions 53-45
RTECS Number DS1750000
Transport Information UN 1567 6.1/PG 2
WGK Germany 3
Globally Harmonized System of
Classification and Labelling (GHS)
Skull and Crossbones-Acute Toxicity  Health Hazard  

Beryllium Products

Metal Forms  •  Compounds  •  Alloys  •  Oxide Forms  •  Organometallic Compounds
Sputtering Targets  •  Nanomaterials  •  Semiconductor Materials

Recent Research & Development for Beryllium

  • R.P. Doerner, M.J. Baldwin, D. Nishijima, Plasma-induced morphology of beryllium targets exposed in PISCES-B, Journal of Nuclear Materials, Volume 455, Issues 1–3, December 2014
  • Jae-Hwan Kim, Masaru Nakamichi, Reactivity of plasma-sintered beryllium–titanium intermetallic compounds with water vapor, Journal of Nuclear Materials, Volume 455, Issues 1–3, December 2014
  • Jae-Hwan Kim, Masaru Nakamichi, Effect of grain size on the hardness and reactivity of plasma-sintered beryllium, Journal of Nuclear Materials, Volume 453, Issues 1–3, October 2014
  • J. Roth, W.R. Wampler, M. Oberkofler, S. van Deusen, S. Elgeti, Deuterium retention and out-gassing from beryllium oxide on beryllium, Journal of Nuclear Materials, Volume 453, Issues 1–3, October 2014
  • R. García-Gutiérrez, M. Barboza-Flores, D. Berman-Mendoza, O.E. Contreras-López, A. Ramos-Carrazco, Synthesis and characterization of highly luminescent beryllium nitride, Materials Letters, Volume 132, 1 October 2014
  • K. Hacini, Z. Chouahda, A. Djedid, H. Meradji, S. Ghemid, F. El Haj Hassan, R. Khenata, Ab initio study of the structural, electronic, phase diagram, and thermal properties of cadium beryllium selenide mixed crystals, Materials Science in Semiconductor Processing, Volume 26, October 2014
  • Lyudmila Chekushina, Daulet Dyussambaev, Asset Shaimerdenov, Kunihiko Tsuchiya, Tomoaki Takeuchi, Hiroshi Kawamura, Timur Kulsartov, Properties of tritium/helium release from hot isostatic pressed beryllium of various trademarks, Journal of Nuclear Materials, Volume 452, Issues 1–3, September 2014
  • Bo Xiao, Xuefang Yu, Hong Hu, Yihong Ding, Beryllium decorated armchair boron nitride nanoribbon: A new planar tetracoordinate nitride containing system with enhanced conductivity, Chemical Physics Letters, Volume 608, 21 July 2014
  • Pengbo Zhang, Jijun Zhao, Interactions of extrinsic interstitial atoms (H, He, O, C) with vacancies in beryllium from first-principles, Computational Materials Science, Volume 90, July 2014
  • Guo-Ming Wang, Jin-Hua Li, Xiao Zhang, Wen-Wen Jiang, Zhen-Zhen Bao, Xiao-Meng Zhao, Ying-Xia Wang, Jian-Hua Lin, (C5H6N)4[Be6(HPO3)8]·H2O: A low-density open-framework beryllium phosphite with multidirectional 12-ring channels, Solid State Sciences, Volume 33, July 2014
  • Gonzalo García, Chantal Stoffelsma, Paramaconi Rodriguez, Marc T.M. Koper, Influence of beryllium cations on the electrochemical oxidation of methanol on stepped platinum surfaces in alkaline solution, Surface Science, Available online 27 June 2014
  • Zhi-Cheng Guo, Fen Luo, Yan Cheng, Phase transition and thermodynamic properties of beryllium from first-principles calculations, Computational Materials Science, Volume 84, March 2014
  • Lijun He, Demei Xu, Nan Hu, Tingting Li, Jingming Zhong, Min Luo, Internal Mechanism Analysis of Modeling on Particles Size Distribution Characteristics of Impact Attrition Beryllium Powders, Rare Metal Materials and Engineering, Volume 43, Issue 3, March 2014
  • Xue Yang, Ahmed Hassanein, Atomic scale calculations of tungsten surface binding energy and beryllium-induced tungsten sputtering, Applied Surface Science, Volume 293, 28 February 2014
  • Pablo A. Denis, Federico Iribarne, Theoretical investigation on the interaction between beryllium, magnesium and calcium with benzene, coronene, cirumcoronene and graphene, Chemical Physics, Volume 430, 17 February 2014
  • L. Yang, F.Y. Zhang, M.F. Yan, M.L. Zhang, Microstructure and mechanical properties of multiphase layer formed during thermo-diffusing of titanium into the surface of C17200 copper–beryllium alloy, Applied Surface Science, Volume 292, 15 February 2014
  • K. Esmati, H. Omidvar, J. Jelokhani, M. Naderi, Study on the microstructure and mechanical properties of diffusion brazing joint of C17200 Copper Beryllium alloy, Materials & Design, Volume 53, January 2014
  • Guo-Ming Wang, Xiao Zhang, Jin-Hua Li, Pei Wang, Zong-Hua Wang, Ying-Xia Wang, Jian-Hua Lin, Synthesis and characterization of a new organically templated open-framework beryllium phosphite with 3, 4-connected networks, Solid State Sciences, Volume 27, January 2014
  • Manuel Yáñez, Otilia Mó, Ibon Alkorta, José Elguero, Spontaneous ion-pair formation in the gas phase induced by Beryllium bonds, Chemical Physics Letters, Volume 590, 18 December 2013
  • R.C. Silva, F.J. Caires, D.J.C. Gomes, A.C. Gigante, M. Ionashiro, Synthesis, characterization and thermal studies of alkaline earth glycolate, except beryllium and radium, Thermochimica Acta, Volume 573, 10 December 2013

Beryllium Isotopes

Beryllium has one stable isotope: 9Be.

Nuclide Symbol Isotopic Mass Half-Life Nuclear Spin
9Be 10.0135338 Stable 0+