Which statement best describes the process of alpha decay?(1 point)
An unstable nucleus rearranges its particles and releases energy.
An unstable nucleus rearranges its particles and releases energy.
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.
An unstable nucleus releases a particle containing two protons and two neutrons.
An unstable nucleus releases an electron.