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Element Neptunium (Np), Group 20, Atomic Number 93, f-block, Mass [237]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
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The result of McMillan and Abelson's reaction was the...
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Neptunium is a chemical element; it has symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element. It is named after Neptune, the planet beyond Uranus in the Solar System, which uranium is named after. A neptunium atom has 93 protons and 93 electrons, of which seven are valence electrons.
Neptunium is the 93rd element in the periodic table and has a symbol of Np and atomic number of 93. It has an atomic weight of (237) and a mass number of 219. Neptunium has ninety-three protons and one hundred twenty-six neutrons in its nucleus, and ninety-three electrons in seven shells.
1 Σεπ 2024 · Neptunium in Periodic table. Neptunium element is in period 7 and in actinides group of the Periodic table. Neptunium is the f-block element and it belongs to inner transition metals group.
Neptunium - Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more; Interactive periodic table of the chemical elements.
Comprehensive data on the chemical element Neptunium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Neptunium. Common chemical compounds are also provided for many elements.
21 Νοε 2020 · Neptunium is a chemical element with atomic number 93 which means there are 93 protons and 93 electrons in the atomic structure. The chemical symbol for Neptunium is Np. Neptunium metal is silvery and tarnishes when exposed to air. Neptunium is the first transuranic element.
