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单词 atomic number 53
释义 Noun: atomic number 53
  1. A nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)
    - iodine, iodin, I

Type of: chemical element, element, halogen

Part of: brine, saltwater, seawater

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