Protactinium is a chemical element; it has symbol Pa and atomic number 91. It is a dense, radioactive, silvery-gray actinide metal which readily reacts...

Protactinium (91Pa) has no stable isotopes. The four naturally occurring isotopes allow a standard atomic weight to be given. Twenty-nine radioisotopes...

Protactinium monoxide is a radioactive inorganic compound and one of the oxides of protactinium. Its chemical formula is PaO. It is a black solid that...

Protactinium bromide may refer to: Protactinium(IV) bromide (protactinium tetrabromide), PaBr4 Protactinium(V) bromide (protactinium pentabromide), PaBr5...

Protactinium oxide may refer to: Protactinium(II) oxide [Wikidata], PaO Protactinium(IV) oxide, PaO2 Protactinium(V) oxide, Pa2O5 Protactinium#Chemical...

Protactinium trihydride is an inorganic compound with the chemical formula PaH3. It is isostructural with uranium trihydride and can be prepared by reacting...

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

Protactinium tetraiodide is a binary inorganic compound of protactinium metal and iodine with the chemical formula PaI4. Protactinium tetraiodide can...

Protactinium tetrafluoride is a binary inorganic compound of protactinium metal and fluorine with the chemical formula PaF4. Protactinium tetrafluoride...

Crookes isolated protactinium (91) as a radioactive material deriving from uranium that he could not identify. Different isotopes of protactinium were identified...

found was an isotope of protactinium. This spurred Hahn and Meitner, the discoverers of the most stable isotope of protactinium, to conduct a four-year-long...

Protactinium nitride is a binary inorganic compound of protactinium and nitrogen with the chemical formula PaN. The compound can be obtained from the...

Protactinium(IV) oxide is a chemical compound with the formula PaO2. The black oxide is formed by reducing Pa2O5 with hydrogen at 1 550 °C. Protactinium(IV)...

Protactinium(V) bromide is an inorganic compound. It is a halide of protactinium, consisting of protactinium and bromine. It is radioactive and has a chemical...

Protactinyl nitrate, protactinium(V) oxynitrate, or erroneously known as protactinium nitrate, is a radioactive chemical compound with the formula PaO(NO3)3·xH2O...

half-life of only 22 minutes. Thorium-233 decays into protactinium-233 through beta decay. Protactinium-233 has a half-life of 27 days and beta decays into...

Protactinium(IV) bromide is an inorganic compound. It is an actinide halide, composed of protactinium and bromine. It is radioactive, and has the chemical...

Protactinium(IV) chloride is an inorganic compound. It is an actinide halide, a salt composed of protactinium and chlorine. It is radioactive, and has...

(solitaire) Ninety One plc, an Anglo-South African asset management business Protactinium, atomic number 91 91 Aegina, a main-belt asteroid All pages with titles...

Protactinium compounds are compounds containing the element protactinium (symbol: Pa). These compounds usually have protactinium in the +5 oxidation state...

physicist who was instrumental in the discoveries of nuclear fission and protactinium. Completing her doctoral research in 1905, Meitner became the second...

Meitner discovered isotopes of the radioactive elements radium, thorium, protactinium and uranium. He also discovered the phenomena of atomic recoil and nuclear...

thorium salt absorbs neutrons and slowly converts its thorium to protactinium-233. Protactinium-233 can be left in the blanket region where neutron flux is...

the science of radioactivity and the co-discoverer of chemical element protactinium. Fajans was born May 27, 1887, in Warsaw, Congress Poland, to a family...

thorium-234 and protactinium-234, are beta particle emitters with half-lives of about 20 days and one minute respectively. Protactinium-234 decays to uranium-234...

Protactinium(V) chloride is the chemical compound composed of protactinium and chlorine with the formula PaCl5. It forms yellow monoclinic crystals and...

Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium...

Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium...

Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium...

Lead Bismuth Polonium Astatine Radon Francium Radium Actinium Thorium Protactinium Uranium Neptunium Plutonium Americium Curium Berkelium Californium Einsteinium...