Definition of Protactinium

1. Noun. A short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead.

Exact synonyms: Atomic Number 91, Pa, Protoactinium
Generic synonyms: Metal, Metallic Element



Definition of Protactinium

1. Noun. a chemical element (''symbol'' Pa) with atomic number 91. ¹

¹ Source: wiktionary.com

Definition of Protactinium

1. [n -S]

Protactinium Pictures

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Lexicographical Neighbors of Protactinium

prostrating
prostration
prostrations
prostyle
prostyles
prosuicide
prosumer
prosumers
prosurvival
prosy
prosyllogism
prosyllogisms
prosyllogistic
protactic
protactinium (current term)
protactiniums
protagon
protagonism
protagonist
protagonistic
protagonists
protagons
protamines
protamins
protandry

Literary usage of Protactinium

Below you will find example usage of this term as found in modern and/or classical literature:

1. American Journal of Roentgenology by American Radium Society (1919)
""protactinium," A NEW ELEMENT RADIO-ACTIVE According to a note in the Chemical Trade ... and indicated the presence of the new element "protactinium. ..."

2. Proceedings of the Workshop on Long-lived Radionuclide Chemistry in Nuclear by NEA Nuclear Science Committee (1998)
"Further, bismuth dissolves some metals such as lithium, thorium, uranium, protactinium and rare earth elements. Dissolved lithium is able (under the given ..."

3. Compendium of abstracts of papers on the therapeutic use of radiumby Radium Chemical Company by Radium Chemical Company (1920)
"protactinium. The decay product from UY which is the parent element of actinium. See Actinium Series. RADIATIONS. See Becquerel Rays ; Primary, secondary, ..."

4. Advanced Reactors With Innovative Fuels: Second Workshop Proceedings by OECD Nuclear Energy Agency, British Nuclear Fuels Limited (2002)
"This is known as the protactinium effect [2]. It is interesting to note that no corresponding effect exists for the uranium-plutonium cycle. ..."

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