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| silicon | |||
| silicon A brittle metalloid element that exists in two allotropic forms; occurs principally in sand, quartz, granite, feldspar, and clay. It is usually a grey crystalline solid but is also found as a brown amorphous powder. It is used in transistors, rectifiers, solar cells, and alloys. Its compounds are widely used in glass manufacture, the building industry, and in the form of silicones | |||
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silicium : 80 צירופים, 11 נושאים |
| טכנולוגית מידע | 7 |
| כִּימִיָה | 18 |
| כללי | 3 |
| מֵטַלוּרגִיָה | 6 |
| מדעי החיים | 1 |
| מדעי הטבע | 2 |
| מדעי כדור הארץ | 8 |
| מכשירי חשמל | 28 |
| סביבה | 5 |
| תַעֲשִׂיָה | 1 |
| תעשיית האנרגיה | 1 |