protactinium's Usage Examples:

Protactinium(V) chloride is the chemical compound composed of protactinium and chlorine with the formula PaCl5.

As protactinium(IV) oxide, like other protactinium compounds.

of protactinium.

233Pa has convenient half-life and energy of γ-radiation, and thus was used in most studies of protactinium chemistry.

Thorium-233 decays into protactinium-233 through beta decay.

oxygen-26 40 sodium-19 40 oxygen-25 50 nitrogen-24 52 protactinium-219 53 neon-34 60 sodium-37 60 protactinium-220m2 69 actinium-217 69 francium-215 86 lead-196m1.

Crookes isolated protactinium (91) as a radioactive material deriving from uranium that he could not identify.

Different isotopes of protactinium were identified.

able in 1927 to isolate protactinium oxide and was later able to produce metallic protactinium by decomposition of protactinium iodide.

and Lise Meitner discovered radioactive isotopes of radium, thorium, protactinium and uranium.

protactinium and nuclear fission.

While working at the Kaiser Wilhelm Institute on radioactivity, she discovered the radioactive isotope protactinium-231.

teacher Kasimir Fajans, co-discovered the chemical element protactinium in 1913.

because of parasitic (n,2n) reactions on uranium-233 itself, or on protactinium-233, or on thorium-232: 232Th (n,γ) 233Th (β−) 233Pa (β−) 233U (n,2n).

She also helped to discover the element protactinium, which Dmitri Mendeleev had predicted should occur in the periodic table.

The primary decay products before 237 Np are isotopes of uranium and protactinium, and the primary products after are isotopes of plutonium.

However, four such elements, bismuth, thorium, protactinium, and uranium, have characteristic terrestrial isotopic compositions,.

with a short half-life, 234Th nuclei emit a beta particle to become protactinium-234 (234Pa), or more likely a nuclear isomer denoted 234mPa.

Synonyms:

atomic number 91; metallic element; Pa; protoactinium; metal;

Antonyms:

nonmetallic;