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MeSH(Medical Subject Headings) ¸ÂÃã °Ë»ö (http://www.nlm.nih.gov) °á°ú : 2 ÆäÀÌÁö: 1
  • Elements - »õâ Substances that comprise all matter. Each element is made up of atoms that are identical in number of electrons and protons and in nuclear charge, but may differ in mass or number of neutrons.
    Synonyms :
  • Elements, Radioactive - »õâ Elements which exhibit atomic emission due to natural or artificial nuclear transformation. These elements spontaneously undergo radioactive decay.
    Synonyms :
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MeSH(Medical Subject Headings) À¯»ç °Ë»ö (http://www.nlm.nih.gov) °á°ú : 0 ÆäÀÌÁö: 1
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