Noun:

రసాయన రకం,

protactinium's Usage Examples:

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

who contributed to the discoveries of the element protactinium and nuclear fission.

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).

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

this element was discovered in 1918, and thus the name was changed to protoactinium, and then in 1949 to its present name, protactinium.

difficult to achieve in binary iodides, the maximum known being in the pentaiodides of niobium, tantalum, and protactinium.

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

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

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

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

beta particle to become protactinium-234 (234Pa), or more likely a nuclear isomer denoted 234mPa.

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

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.

Synonyms:

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

Antonyms:

nonmetallic,