Identify the product of radioactive decay and classify the given nuclear reactions accordingly.

Radioactive decay is the means by which unstable nuclei move towards stability by emitting energy and subatomic particles. The types are:

Alpha particle decay:

Alpha particles, which are identical to helium nuclei, are released. The atomic mass of the substance decreases by 4 units and the atomic number decreases by 2.

Beta particle decay:

These particles are similar to mass as an electron, and during this decay, the atomic mass remains the same but atomic number increases by 1.

Gamma ray decay:

Gamma rays are released, which are high energy electromagnetic waves, by some radioactive nuclei to rid the excess energy they have.