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Neptunium is a
chemical element; it has
symbol Np and
atomic number 93. A
radioactive actinide metal,
neptunium is the
first transuranic element. It is...
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Neptunium (93Np) is
usually considered an
artificial element,
although trace quantities are
found in nature, so a
standard atomic weight cannot be given...
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Neptunium bromide may
refer to:
Neptunium(III)
bromide (
neptunium tribromide), NpBr3
Neptunium(IV)
bromide (
neptunium tetrabromide), NpBr4 This set index...
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Neptunium chloride may
refer to:
Neptunium(III)
chloride (
neptunium trichloride), NpCl3
Neptunium(IV)
chloride (
neptunium tetrachloride), NpCl4 This set...
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Neptunium fluoride may
refer to:
Neptunium(III) fluoride, NpF3
Neptunium(IV) fluoride, NpF4
Neptunium(V) fluoride, NpF5
Neptunium(VI) fluoride, NpF6 This...
- but the
valence +4 is
preferred in
solid neptunium compounds.
Neptunium metal is very reactive. Ions of
neptunium are
prone to
hydrolysis and
formation of...
- 5-metre (60 in)
cyclotron at the
University of California, Berkeley. First,
neptunium-238 (half-life 2.1 days) was synthesized,
which then beta-deca**** to form...
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Neptunium tetrachloride is a
binary inorganic compound of
neptunium metal and
chlorine with the
chemical formula NpCl4. The
compound can be
prepared by:...
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Neptunium(III)
iodide is the
iodide of
neptunium with the
chemical formula NpI3.
Neptunium(III)
iodide can be
produced by the
reaction of
neptunium dioxide...
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Neptunium compounds are
compounds containing the
element neptunium (Np).
Neptunium has five
ionic oxidation states ranging from +3 to +7 when
forming chemical...
