Final answer:
Particles that can leave the nucleus include electrons, positrons, alpha particles, photons, protons, and neutrons.
Step-by-step explanation:
When a decay happens, the nucleus can release various particles and radiation. Some of the particles that can leave the nucleus include electrons, positrons, alpha particles, photons, protons, and neutrons. These particles are emitted at high speeds and can cause damage to materials and biological tissues. For example, high-energy particles like alpha particles can cause mutations and initiate cancerous growth.