Task: Question Answering
Input (English): Process:  -The nuclei of some atoms have too few or too many neutrons -The atoms become unstable -The atoms split -In alpha decay, two protons and two neutrons are released from the atom -In beta decay, a neutron changes into a proton and an electron -The proton joins the nucleus of the atom -The electron is released -
 Question: What is the effect of There is a substance that can alter the nucleus on radioactive activity increases.?
Output (English): for