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berilyum

File:Beacetate.png · Wikimedia Commons · See Wikimedia Commons

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berilyum

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Also known as Be, element 4, glucineum, ₄Be

Kimyasal element

OverviewAI-generated

Beryllium is a chemical element with the symbol Be and atomic number 4. Its standard chemical formula is Be. The element has an atomic mass of 9.0121831 and an electronegativity of 2. Its electron configuration is listed as 1s² 2s² or [He] 2s². The ionic radius is 0.45.

Beryllium has a density of 1.850 and electrical conductivity of 25000000. It melts at 2349 and boils at 4532. The vapor pressure is 0. The primary oxidation state is 2. It was discovered in 1798. The Unicode character for the element is 鈹.

Safety guidelines include a time-weighted average exposure limit of 0.002 and a ceiling exposure limit of 0.0005. The level immediately dangerous to life or health is 4. The NIOSH Pocket Guide ID is 0054. In chemical databases, it is identified by PubChem CID 5460467 and InChIKey ATBAMAFKBVZNFJ-UHFFFAOYSA-N.

Synthesized by Vinony from 34 facts across 4 sources: Wikidata, PubMed, PubChem, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Chemical data

Formula
Be
Molecular weight
9.012183 g/mol
IUPAC name
beryllium
SMILES
[Be]
InChIKey
ATBAMAFKBVZNFJ-UHFFFAOYSA-N
Polar surface area
0 Ų
H-bond donors
0
H-bond acceptors
0
Formal charge
0

via PubChem

Research

5,133 papers

via PubMed

Wikidata facts

Instance of
lithophile
Subclass of
metal
Part of
period 2
Named after
beryl
Material used
beryl
Mass
9.0121831
Image
Beryllium nuggets 2.jpg
Show 27 more facts
Commons category
Beryllium
element symbol
Be
melting point
2349
oxidation state
2
atomic number
4
discoverer or inventor
Antoine Bussy
topic's main category
Category:Beryllium
NIOSH Pocket Guide ID
0054
density
1.850
has effect
berylliosis
immediately dangerous to life or health
4
Commons gallery
Beryllium
boiling point
2970
vapor pressure
0
time-weighted average exposure limit
0.002
ceiling exposure limit
0.0005
time of discovery or invention
1798-00-00
electronegativity
2
location of discovery
France
chemical formula
Be
canonical SMILES
[Be]
electrical conductivity
25000000
Unicode character
鈹
electron configuration
[He] 2s²
different from
Beryl
ionic radius
0.45
on focus list of Wikimedia project
Wikipedia:Vital articles/Level/4
Sources (11)

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