Neptunium
Автор:
Jesse Russell,Ronald Cohn, издатель:
"VSD", ISBN:
978-5-5111-0121-7
High Quality Content by WIKIPEDIA articles! Neptunium ( /n?p?tju?ni?m/ nep-TEW-nee-?m) is a chemical element with the symbol Np and atomic number 93. A radioactive metal, neptunium is the first transuranic element and belongs to the actinide series. Its mo
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