Gamma radiation arises from the radioactive decay of the nuclei along with the release of γ. The reaction of the Technetium (Tc) element represents the gamma decay. Thus, option A is correct.
Gamma packets are the energy packets released in the radioactive decay reaction where the particle undergoing decay does not have a change in the number of protons or neutrons but instead moves the nucleus from higher to lower energy levels. The gamma emission is depicted by,
⁹⁰Tc₄₃ → ⁹⁰Tc₄₃ + γ
In the gamma decay of the Technetium element, the nucleus from the higher energy lowers and produces the same elements along with a gamma photon.
In gamma decay, the unstable nuclei dissipate energy in the form of gamma rays or photons. In this type of radioactive decay, the element in the reactant and the product are the same.
Therefore, a reaction involving Tc is an example of gamma emission.
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