True or False: Alpha emission changes the identity of the radionuclide.

Alpha emission indeed changes the identity of the radionuclide. This process involves the release of an alpha particle, which consists of two protons and two neutrons (essentially, it is a helium nucleus). When an alpha particle is emitted, the original radionuclide loses two protons and two neutrons, resulting in a new element with a reduced atomic number.

For example, if uranium-238 undergoes alpha decay, it transforms into thorium-234. This change is fundamental to the process of radioactive decay, as each type of decay can lead to the formation of entirely different elements. The emitted alpha particle and the resultant change in atomic structure clearly show how the identity of the radionuclide is altered.

This understanding is crucial for applications such as radiation therapy and safety, where knowing the identities of radionuclides involved can affect treatment decisions and safety protocols.