Element Beryllium

Beryllium ElementBeryllium atom is alkaline earth metal atom with atomic number 4. It has a role as a carcinogenic agent, an adjuvant and an epitope. It is an alkaline earth metal atom and a metal allergen.
Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust. Beryllium compounds are commercially mined, and the Beryllium is purified for use in nuclear weapons and reactors, aircraft and space vehicle structures, instruments, x-ray machines, and mirrors. Beryllium ores are used to make speciality ceramics for electrical and high-technology applications. Beryllium alloys are used in automobiles, computers, sports equipment (golf clubs and bicycle frames), and dental bridges.

Names and Identifiers

Chemical Formula:Be
CAS:7440-41-7
Molecular Weight:9.012 g/mol
EC Number :231-150-7
MDL Number:MFCD00134032
Color:steel/lead gray
Other Names:Berílio
PubChem CID:5354618
IUPAC Name:Beryllium
Inchl:InChI=1S/Be
InChI Key:ATBAMAFKBVZNFJ-UHFFFAOYSA-N
Canonical SMILES:[Be]
ICSC Number:0226

Physical & Chemical Properties

Phase:Solid
Density:1.85 g/cm³
Boiling Point:2742 K ​(2469 °C, ​4476 °F)
Melting Point:1560 K ​(1287 °C, ​2349 °F)
Molecular Formula:Be
Flash Point:n/a
Exact Mass:9.012182
Symbol:Globally Harmonized System of ClassificationGlobally Harmonized System of Classification
Signal Word:Danger
Hazard Statements:H301-H315-H317-H319-H330-H335-H350i-H372
Precautionary Statements:P201-P260-P280-P284-P301 + P310 + P330-P304 + P340 + P310
Hazard Codes:T+,T
Risk Phrases:R49
Safety Phrases:S53-S45
RIDADR:UN 1567 6.1/PG 2
WGK Germany:1
RTECS:DS1750000
Packaging Group:III
Hazard Class:8

Both stable and unstable isotopes of  element beryllium are created in stars, but the radioisotopes do not last long. It is believed that most of the stable beryllium in the universe was originally created in the interstellar medium when cosmic rays induced fission in heavier elements found in interstellar gas and dust

Naturally occurring isotopes

IsotopeMass/DaNatural abundance (atom %)Nuclear spin (I)Magnetic moment (μ/μN)
9Be9.012 182 1(4)1003/2-1.1779

Radiosotope data

IsotopeMass/DaHalf-lifeMode of decayNuclear spinNuclear magnetic moment
6Be6.019735.9 x 10-21 s2p to 4He0
7Be7.01692953.28 dEC to 7Li3/2
8Be8.0053051about 7 x 10-17 s2α to n0
10Be10.0135341.52 x 106 yβ to 10B0
11Be11.0216613.8 sβ to 11B, β + α to 7Li1/2
12Be12.026920.024 sβ to 12B; β + n to 11B0
13Be13.04280.004 sβ to 13B; β + n to 12B; β + 2n to 11B0

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