Which statement best describes the process of alpha decay?(1 point)
Responses
An unstable nucleus releases an electron.
An unstable nucleus releases an electron.
An unstable nucleus releases a single positively charged particle.
An unstable nucleus releases a single positively charged particle.
An unstable nucleus releases a particle containing two protons and two neutrons. It is identical to a helium-4 nucleus.
An unstable nucleus releases a particle containing two protons and two neutrons. It is identical to a helium-4 nucleus.
An unstable nucleus rearranges its particles and releases energy.