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Helium-3
Ciro Santilli
(
@cirosantilli,
37
)
...
Science
Natural science
Chemistry
Chemical element
List of chemical elements
Helium
Updated
2025-07-16
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Helium
List of chemical elements
Chemical element
Chemistry
Natural science
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Helium-3
by
Wikipedia Bot
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Helium-3
(He-
3
) is
a
light
, stable
isotope
of
helium
with two
protons
and one
neutron
in its nucleus,
giving
it an
atomic mass
of approximately three
atomic mass
units. It is
a
rare
isotope
compared to the more common
helium-4
(He-
4)
, which has two
protons
and two
neutrons
.
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