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Physics
Physics
Problem
The atomic mass of a neutral
4
He
^4\text{He}
4
He
atom is
4.002603
u
4.002603\,\text{u}
4.002603
u
. Given
m
p
=
1.007276
u
m_p = 1.007276\,\text{u}
m
p
=
1.007276
u
,
m
n
=
1.008665
u
m_n = 1.008665\,\text{u}
m
n
=
1.008665
u
and
m
e
=
0.000548
u
m_e = 0.000548\,\text{u}
m
e
=
0.000548
u
, calculate the mass defect of the
4
He
^4\text{He}
4
He
nucleus in atomic mass units (u).
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