Assertion: neptunium | /r/HasProperty | np
Facets:
Source sentences:
text: 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.
text: Neptunium (Np) is a man-made actinide metal, grayish in color, which lies on the periodic table of elements between uranium and plutonium.
text: By: E.M. McMillan, P.H. AbelsonYear: 1940Location: United StatesWant to learn more details and data about Neptunium (Np)?
text: This month we’re looking at atomic number 93, neptunium (Np).
text: The synthetic elements start at Neptunium (Np) any are all synthetic from then on.
text: Plutonium-239 is synthesized via the following reaction using uranium (U) and neutrons (n) via beta decay (β−) with neptunium (Np) as an intermediate:
text: (In), tin (Sn), antimony (Sb), tellurium (Te), iodine (I), xenon (Xe), caesium (Cs), jbarium (Ba), lanthanum (La), hafnium (Hf), tantalum (Ta), tungsten (W), rhenium (Re), osmium (Os), iridium (Ir), platinum (Pt), gold (Au), mercury (Hg), thallium (Tl), lead (Pb), bismuth (Bi), polonium (Po), astatine (At), radon (Rn), francium (Fr), radium (Ra), actinium (Ac), rutherfordium (Rf), dubnium (Db), seaborgium (Sg), bohrium (Bh), hassium (Hs), meitnerium (Mt), darmstadtium (Ds), roentgenium (Rg), copernicium (Cn), nihonium (Nh), flerovium (Fl), moscovium (Mc), livermorium (Lv), tennessine (Ts), oganesson (Og), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), thorium (Th), protactinium (Pa), uranium (U), neptunium (Np), plutonium (Pu), americium (Am), curium (Cm), berkelium (Bk), californium (Cf), einsteinium (Es), fermium (Fm), mendelevium (Md), nobelium
text: Minor actinides ~ 0.1 Important (MAs) primarily contributors to Neptunium (Np), long-term radio- Americium (Am) and toxicity of the Curium (Cm) waste.
text: Neptunium (Np) was first synthesized in 1940 by the transmutation of the element uranium by neutron emission.
text: Neptunium (Np, Z = 93) is a radioactive, manmade element
text: The only neptunium (Np) available on Earth is man-made.