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selenium (Q876)

From Wikidata
chemical element with symbol Se and atomic number 34
  • Se
  • element 34
  • 34Se
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Language Label Description Also known as
default for all languages
No label defined
  • Se
English
selenium
chemical element with symbol Se and atomic number 34
  • Se
  • element 34
  • 34Se

Statements

subclass of
metalloid
0 references
p-block
0 references
IPA transcription
səˈliːniəm
language of work or name
English
0 references
time of discovery or invention
1817
0 references
electron configuration
[Ar] 4s² 3d¹⁰ 4p⁴
1 reference
reference URL
https://physics.nist.gov/asd
retrieved
19 September 2026
ionization energy
9.752368±0.000006 electronvolt
series ordinal
1
1 reference
reference URL
https://physics.nist.gov/asd
title
NIST Atomic Spectra Database, Ionization Energies (English)
retrieved
18 September 2026
21.196±0.01 electronvolt
series ordinal
2
1 reference
reference URL
https://physics.nist.gov/asd
title
NIST Atomic Spectra Database, Ionization Energies (English)
retrieved
18 September 2026
31.697±0.019 electronvolt
series ordinal
3
1 reference
reference URL
https://physics.nist.gov/asd
title
NIST Atomic Spectra Database, Ionization Energies (English)
retrieved
18 September 2026
density
4.28±0.01 gram per cubic centimetre
temperature
20±1 degree Celsius
1 reference
reference URL
http://www.cdc.gov/niosh/npg/npgd0550.html
boiling point
1,265±1 degree Fahrenheit
under pressure
760±1 torr
1 reference
reference URL
http://www.cdc.gov/niosh/npg/npgd0550.html
vapor pressure
0±1 millimetre of mercury
temperature
68±1 degree Fahrenheit
1 reference
reference URL
http://www.cdc.gov/niosh/npg/npgd0550.html
NIOSH Pocket Guide ID
0550
0 references
schematic
Electron shell 034 Selenium - no label.svg
1,400 × 1,400; 4 KB
0 references
Commons gallery
Selenium
0 references
Commons category
Selenium
0 references
atomic radius
115 picometre
1 reference
DOI
10.1063/1.1725697
retrieved
3 October 2026
covalent radius
120 picometre
1 reference
DOI
10.1039/B801115J
retrieved
3 October 2026
Van der Waals radius
190 picometre
1 reference
DOI
10.1021/J100785A001
retrieved
3 October 2026

Identifiers

J9U entity ID
987007529471405171
subject named as (monolingual text)
Selenium (English)
סלניום (Hebrew)
السيلينيوم (Arabic)
1 reference
stated in
National Library of Israel
NDL Authority ID
00570819
0 references
COD ID
7228524
0 references
ICSC ID
0072
0 references
CAMEO Chemicals ID
4427
0 references
RTECS number
VS7700000
0 references
ZVG number
7340
0 references
HSDB ID
4493
1 reference
stated in
Hazardous Substances Data Bank
HSDB ID
4493
publication date
28 October 2019
title
SELENIUM, ELEMENTAL (English)
retrieved
10 May 2021
KEGG ID
C01529
0 references
Arabic Ontology lexical concept ID
151078532
subject named as
atomic number 34 | Se | selenium
scope note
a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite) (English)
0 references
BNCF Thesaurus ID
52421
0 references
HCIS ID
4102
0 references
KBpedia ID
Selenium
1 reference
stated in
KBpedia
retrieved
9 July 2020
Lex ID
selen
0 references
NALT ID
33437
0 references
PM20 ware ID
143876
subject named as
Selen
0 references
PSH ID
5808
0 references
Quora topic ID
Selenium-2
0 references
Selenium-element
0 references
Treccani ID
selenio
subject named as
selenio
0 references
USGS Thesaurus ID
1572
0 references
WikiKids ID
Seleen
MediaWiki page ID
138141
0 references
WordNet 3.1 Synset ID
14678354-n
subject named as
atomic number 34, Se, selenium
scope note
a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite) (English)
1 reference
stated in
GF WordNet
YSO ID
10413
subject named as (monolingual text)
selenium (English)
selena (Northern Sami)
selen (Swedish)
seleeni (Finnish)
1 reference
stated in
YSO-Wikidata mapping project
 
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