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Naturally occurring neodymium (60 Nd) is composed of five stable isotopes— 142 Nd, 143 Nd, 145 Nd, 146 Nd and 148 Nd, with 142 Nd being the most abundant (27.2% of the natural abundance)—and two radioisotopes with extremely long half-lives, 144 Nd (alpha decay with a half-life (t 1/2) of 2.29 × 10 15 years) and 150 Nd (double beta decay, t ...
A neodymium magnet (also known as NdFeB, NIB or Neo magnet) is a permanent magnet made from an alloy of neodymium, iron, and boron to form the Nd 2 Fe 14 B tetragonal crystalline structure. [1] They are the most widely used type of rare-earth magnet .
Long-term storage of KI is normally in the form of reagent-grade crystals. [ 18 ] The administration of known goitrogen substances can also be used as a prophylaxis in reducing the bio-uptake of iodine, (whether it be the nutritional non-radioactive iodine-127 or radioactive iodine, radioiodine - most commonly iodine-131 , as the body cannot ...
Ferrofluid on glass, with a rare-earth magnet underneath. A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.
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A modern ferrocerium firesteel product is composed of an alloy of rare-earth metals called mischmetal, containing approximately 20.8% iron, 41.8% cerium, about 4.4% each of praseodymium, neodymium, and magnesium, plus 24.2% lanthanum. [5] A variety of other components are added to modify the spark and processing characteristics. [2]
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Salt doesn't really go bad,” confirms Donald Schaffner, Ph.D., a professor of food microbiology and extension specialist at Rutgers University in New Brunswick, New Jersey.