Neptunium
A radioactive element of the actinide metals family. It has the atomic symbol Np, and atomic number 93.
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Subheadings:
Tree Number(s): D01.268.271.100.550, D01.268.556.600, D01.496.749.305.100.550, D01.552.020.621, D01.552.544.600
MeSH Unique ID: D009405
Registry Number: 6200K977BQ