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ID number:171592
 
Evaluation:
Published: 19.04.2011.
Language: Latvian
Level: Elementary school
Literature: n/a
References: Not used
Extract

Kas ir svins?
Metāls labu korozijas izturību.
Svinu iegūst no sulfīdu rūdas.
Svins ir toksisks smagais metāls.

Kas ir svins?
Svins ir ķīmisks elements ar simbolu Pb.
Svins ir zilganpelēks, mīksts, plastisks metāls.
Kušanas temperatūra – 327,5ºC

Kas ir svins?
Svinam ir zema siltumvadītspēja un elektrovadītspēja.
Tā blīvums ir 11,34 g/cm3.
Gaisā tas pārklājas ar oksīda aizsargkārtiņu.
Cilvēks iepazina svinu jau pirms apmēram 6000 gadu.

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