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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...
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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 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 bromide may
refer to:
Protactinium(IV)
bromide (
protactinium tetrabromide), PaBr4
Protactinium(V)
bromide (
protactinium pentabromide), PaBr5...
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Protactinium oxide may
refer to:
Protactinium(II) oxide [Wikidata], PaO
Protactinium(IV) oxide, PaO2
Protactinium(V) oxide, Pa2O5
Protactinium#Chemical...
- 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 trihydride is an
inorganic compound with the
chemical formula PaH3. It is
isostructural with
uranium trihydride and can be
prepared by reacting...
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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 nitride is a
binary inorganic compound of
protactinium and
nitrogen with the
chemical formula PaN. The
compound can be
obtained from the...
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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...
