Mas atomik mwayèn

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Mas atomik mwayèn se mwayèn pondere mas melan izotòp yon eleman.[1]

Referans[modifye | modifye kòd]

  1. ↑ http://www.glencoe.com/sec/science/mlg/mss/HaitianCreole_ms_A.pdf
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