Problem 1 (Atomic and Nuclear Reactions)
Gennaio 7th, 2021 | by Marcello Colozzo |One exothermic reaction occurs when common aluminium is bombarded with high-energy a particles (He
Solution
The reaction is
The particle emitted is a proton. Thus the complete reaction is
The isotope masses of the nuclei showing up in this reaction are:
There is a decrease in mass, or a mass defect:
This mass is converted in negative energy (i.e. energy is released) according to Einstein's law ΔE=Δm·c².
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