Which of the following are emitted from a radioactive substance without altering either the nucleon number or the proton number of the substance?
Answer Details
Gamma rays are emitted from a radioactive substance without altering either the nucleon number or the proton number of the substance. This means that gamma rays do not affect the atomic structure of the substance, but rather carry energy away from the nucleus. In contrast, alpha and beta particles are emitted during radioactive decay and do change the composition of the nucleus by altering the nucleon and/or proton numbers. Protons and neutrons are subatomic particles that make up the nucleus of an atom and are not typically emitted during radioactive decay. Therefore, the correct answer is gamma rays.