et

Si

1 [sil`iitsium] symbol

EKI Combined Dictionary 2026

Last modified 12.02.2025

Meanings

looduses ühendeina esinev halli värvi ja metallilise läikega kristalne aine, omadustelt mittemetall, keemiline element järjenumbriga 14
Synonyms

Translations

Good to know

Uusladina silicium < ladina silex 'ränikivi'.

et
Külma käes ei tõmbu räni kokku, nagu enamik aineid, vaid selle ruumala hoopis suureneb.

Terminological databases

EKI terminibaas Esterm

ID 732288 Last modified 15.10.2015
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Domain inorganic chemistry
pii
  • keemiline element, mittemetall; hallikas, kõva, habras, metalli läikega kristalne aine, sulamistemperatuur 1414 ºC, tihedus 2,3 Mg/m3
  • a metalloid element belonging to group 14 (formerly IVB) of the periodic table
räni
Si symbol
silicon
Good to know
  • Silicon makes up 27.7 percent of Earth’s crust; it is the second most abundant element in the crust, being surpassed only by oxygen.
  • Highly purified silicon, doped (infused) with such elements as boron, phosphorus, and arsenic, is the basic material used in computer chips, transistors, silicon diodes, liquid crystal displays, and various other electronic and switching devices. ... Silicon of lesser purity is used in metallurgy as a reducing agent and as an alloying element in steel, aluminum, brass, and bronze.
  • Properties: at.no. 14; r.a.m. 28.086; r.d. 2.33; m.p. 1,410°C (2,570°F); b.p. 2,355°C (4,271°F); most common isotope Si28 (98.21%).
Si symbol
silicium
pii

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Si

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