# When nuclei are bombarded by protons, and the resultant nuclei are the emitted particles will be

The complete question is

When  nuclei are bombarded by protons, and the resultant nuclei are the emitted particles will be

$^{7}_{3}Li+^{1}_{1}p\rightarrow^{8}_{4}Be+^{A}_{z}X$

From conservation of atomic number z + 4 = 4   or    z = 0

From conservation of mass number 7 + 1 = 8 + A     or    A = 0

So the particle is a massless particle and hence it is gamma photons.

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