Q: What is the process in which unstable nuclei become stable by emitting particles and energy and changing to different elements called?


Read this paragraph and choose the correct option from the provided answers:

Radioactive decay is the process in which unstable nuclei become stable by emitting particles and energy and changing to different elements. There are three types of radioactive decay: alpha, beta, and gamma decay. Each differs in what is emitted, how far it can travel, and what it can penetrate.

 Choices:

- nuclear decay

- radioactive decrease

- initial decay

- radioactive decay


A:
radioactive decay