reactive metal
41Titanium — This article is about the chemical element. For other uses, see Titanium (disambiguation). scandium ← titanium → vanadium …
42Nuclear reprocessing — technology was developed to chemically separate and recover fissionable plutonium from irradiated nuclear fuel.[1] Reprocessing serves multiple purposes, whose relative importance has changed over time. Originally reprocessing was used solely to… …
43dysprosium — /dis proh see euhm, shee /, n. Chem. a rare earth metallic element, highly reactive and paramagnetic, found in small amounts in various rare earth minerals, as euxenite and monazite: used to absorb neutrons in nuclear reactors. Symbol: Dy; at. wt …
44Niobium — zirconium ← niobium → molybdenum V ↑ Nb ↓ Ta …
45Jewellery — (also spelled jewelry, see spelling differences) is a personal ornament, such as a necklace, ring or bracelet, made from gemstones, precious metals or other materials.The word jewellery is derived from the word jewel , which was anglicised from… …
46Superbase — In chemistry, a superbase is an extremely strong base. There is no commonly accepted definition for what qualifies as a superbase, but most chemists would accept sodium hydroxide as a benchmark base just as sulfuric acid is a benchmark acid (see… …
47Metals and reactivity — This page contains information on metals, their reactivity and other useful information. It will show symbols and observations from experiments performed in serious scientific investigation. contentsThe Reactivity Series The Reactivity Series The …
48amide — amidic /euh mid ik/, adj. /am uyd, id/, n. Chem. 1. a metallic derivative of ammonia in which the NH2 group is retained, as potassium amide, KNH2. 2. an organic compound obtained by replacing the OH group in acids by the NH2 group. 3. an organic… …
49passivate — pas·si·vate (pasґĭ vāt) to make the surface of a chemically reactive metal (base metal) less reactive by forming a stable surface reaction compound, usually a metallic oxide …
50passivation — pas·si·va·tion (pas″ĭ vaґshən) 1. reduction of reactivity of the surface of a chemically reactive metal (base metal). 2. the process of making such a surface less reactive …
