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ID number:978501
 
Author:
Evaluation:
Published: 07.04.2008.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Nātrijs ir ķīmiskais elements ar simbolu Na un atomskaitli 11
Atommasa 22,98977 g/mol
Blīvums 968 kg/m3
Kušanas temperatūra 370,87 K (97,72°C)
Vārīšanās temperatūra 1156 K (883°C)
Nātrijs ir sārmu metāls
Metālisks nātrijs
Nātrijs dabā brīvā veidā nav sastopams, jo aktīvi reaģē ar gaisa skābekli veidojot oksīdu Na2O un peroksīdu Na2O2 un ūdeni veidojot hidroksīdu NaOH. …

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