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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...
- of
protactinium. 233Pa has
convenient half-life and
energy of γ-radiation, and thus was used in most
studies of
protactinium chemistry.
Protactinium-233...
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Protactinium (91Pa) has no
stable isotopes. The four
naturally occurring isotopes allow a
standard atomic weight to be given. Twenty-nine radioisotopes...
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Protactinium oxide may
refer to:
Protactinium(II) oxide [Wikidata], PaO
Protactinium(IV) oxide, PaO2
Protactinium(V) oxide, Pa2O5
Protactinium#Chemical...
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Protactinium bromide may
refer to:
Protactinium(IV)
bromide (
protactinium tetrabromide), PaBr4
Protactinium(V)
bromide (
protactinium pentabromide), PaBr5...
- 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...
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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...
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Protactinium tetrafluoride is a
binary inorganic compound of
protactinium metal and
fluorine with the
chemical formula PaF4.
Protactinium tetrafluoride...
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Protactinium tetraiodide is a
binary inorganic compound of
protactinium metal and
iodine with the
chemical formula PaI4.
Protactinium tetraiodide can...
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Protactinium(IV)
bromide is an
inorganic compound. It is an
actinide halide,
composed of
protactinium and bromine. It is radioactive, and has the chemical...
