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ID number:129563
 
Evaluation:
Published: 18.01.2007.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Extract

C ir periodiskās sistēmas 2. grupas ķīmiskais elements, atomnumurs- 6, atommasa 12,011. Zemes garozā šis nemetāls ir 0,1 masas %, atmosfērā- 0,012 masa %. Brīvā veidā sastopams kā minerāli dimants un grafīts. Ogleklis ir naftas, dabasgāzes, ogļu, kūdras, degslānekļu, kā arī augu un dzīvnieku organisma galvenā sastāvdaļa. Ogleklis pastāv vairākos vienkāršu vielu veidos kā dimants, grafīts, čaolīts, kliftonīts, londsdeilīts, amorfā ogle.…

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