Search results
Results from the WOW.Com Content Network
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.
Element Neptunium (Np), Group 20, Atomic Number 93, f-block, Mass [237]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Neptunium (Np), radioactive chemical element of the actinoid series of the periodic table that was the first transuranium element to be artificially produced, atomic number 93. Though traces of neptunium have subsequently been found in nature, where it is not primeval but produced by.
Introduction. - Neptunium is a silvery radioactive metallic element that belongs to the actinide series in the periodic table. - It plays a significant role in nuclear research, primarily due to its potential use in breeder reactors. - As an actinide, Neptunium is a metal. Historical Background.
Neptunium (Np) Element: History, Properties, Uses, Hazards. Neptunium, which belongs to the actinide class of the Periodic Table, has an atomic number of 93. It lies between plutonium (94) and uranium (92). It was the first transuranium element to be created intentionally.
Neptunium is a silver metal and is very reactive, with four different oxidation states. When it combines with other elements it occurs as different colored solutions (purple, yellow, green...
Neptunium is the first transuranic element and belongs to actinide series. All transuranic elements are unstable and decay into other elements radioactively. It is represented by the symbol Np and has atomic number 93.
Neptunium has the largest liquid range of any element, 3363 K, between the metal melting point and boiling point. It is the most dense of all the actinides and the fifth most dense of all naturally occurring elements.
Neptunium is a silvery, ductile, radioactive metal. Three allotropes are known. At room temperature it exists primarily in an orthorhombic crystalline state. Uses: Neptunium-237 is used in neutron-detection equipment.
Neptunium is a chemical element of the periodic table with chemical symbol Np and atomic number 93 with an atomic weight of 237 u and is classed as actinide. Neptunium is solid at room temperature.