The relation 5 B 8 ----- 4 Be 8 takes place due to 5B8 ___ 4Be8
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The mass defect of a nuclear reaction is the difference in the mass of the products and the mass of the reactants.
The mass defect of the nuclear reaction
5
B
8
→
4
Be
8
+
1
e
0
is Δm. The correct expression is
(C) Δm = atomic mass of (
4
Be
8
−
5
B
8
) + mass of one positron
The wrong expressions are
(A) Δm = atomic mass of (
4
Be
8
−
5
B
8
)
(B) Δm = atomic mass of (
4
Be
8
−
5
B
8
) + mass of one electron
(D) Δm = atomic mass of (
4
Be
8
−
5
B
8
) _ mass of two electron
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Explanation:
The relation 5 B 8 ----- 4 Be 8 takes place due to 5B8 ___ 4Be8
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