書寫 carbon-12的 relative isotopic mass 係 12.000 units(atomic mass unit)
咁點解會話relative isotopic mass 冇unit 既?
收錄日期: 2021-04-23 17:35:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080103000051KK02878