praseodymiums sentence in Hindi
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- The isotopes of praseodymium range in atomic weight from 120.955 u ( 121 Pr ) to 158.955 u ( 159 Pr ).
- For example, praseodymium ( III ) phosphate and praseodymium ( III ) fluoride can be prepared by reaction with potassium phosphate and sodium fluoride, respectively:
- For example, praseodymium ( III ) phosphate and praseodymium ( III ) fluoride can be prepared by reaction with potassium phosphate and sodium fluoride, respectively:
- Do you want information about PPEPPAr spray ( polyphenyl ether, polypropylene and argon ), or PPEPrEr spray ( polyphenyl ether, praseodymium and erbium )?
- Magnets are made of heavy metals such as manganese, iron, cobalt, nickel, niobium, bismuth, praseodymium, neodymium, gadolinium, and dysprosium.
- All other cerium isotopes are inverse beta decay or electron capture to isotopes of lanthanum, while that of the heavier isotopes is beta decay to isotopes of praseodymium.
- Praseodymium and terbium form non-stoichiometric oxides containing Ln IV, although more extreme reaction conditions can produce stoichiometric ( or near stoichiometric ) PrO 2 and TbO 2.
- Brauner's conflict with Carl Auer von Welsbach about the priority for the discovery that didymium is a mixture of two elements ( praseodymium and neodymium ) was harsh.
- Carl Auer von Welsbach was not only the discoverer of neodymium and praseodymium, and co-discoverer of lutetium, but was also the inventor of the rare earth industry.
- Monazite-derived mischmetal typically was about 48 % cerium, 25 % lanthanum, 17 % neodymium, and 5 % praseodymium, with the balance being the other lanthanides.
- In the 1930s it was found ( Beck ) that praseodymium dioxide could be precipitated from KOH / NaOH eutectic melts, by oxidation by electrochemistry, or by sodium chlorate.
- Praseodymium alloyed with nickel ( ) has such a strong magnetocaloric effect that it has allowed scientists to approach to within one milliKelvin, one thousandth of a degree of absolute zero.
- The most common is AB 5, where A is a rare earth mixture of lanthanum, cerium, neodymium, praseodymium and B is nickel, cobalt, manganese, or aluminium.
- Praseodymium dissolves readily in dilute sulfuric acid to form solutions containing green Pr ( III ) ions, which exist as a [ Pr ( OH 2 ) 9 ] 3 + complexes:
- Polycrystalline SrAl 12 O 19 : Mn is used as a green phosphor for plasma displays, and when doped with praseodymium or neodymium it can act as a good active laser medium.
- He saw several different colored versions which he named " praseodymium " ( green ) and " neodidymium " ( pink ); the latter then became the more common name for the element, neodymium.
- A typical composition might have been 46 % lanthanum, 34 % neodymium, and 11 % praseodymium, with the remainder mostly being samarium and gadolinium for material extracted from South African " rock monazite " from Steenkampskraal.
- Lanthanites include La, Ce, and Nd as major elements and often contain subordinate amounts of other REEs including praseodymium ( Pr ), samarium ( Sm ), europium ( Eu ) and dysprosium ( Dy ).
- Stroud ( SharkDefense, 2006 ) and Fisher ( VIMS ) observed captive cownose rays ( " Rhinoptera bonasus " ) changing swim elevation and ignoring blue crab baits in cages that contained neodymium-praseodymium mischmetal.
- "' Praseodymium "'is a chemical element with symbol "'Pr "'and atomic number 59 . Praseodymium is a soft, silvery, malleable and ductile metal in the lanthanide group.
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