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| 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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silicis : 13 фраз в 5 тематиках |
| Городская застройка | 1 |
| Землеведение | 1 |
| Информационные технологии | 6 |
| Окружающая среда | 1 |
| Пищевая промышленность | 4 |