Current Attempt in Progress When a nucleus undergoes alpha decay, which of the following is true about the products? O The mass of the products added together is equal to the mass of the original nucleus. O The mass of the products added together could be greater than, equal to, or less than the mass of the original nucleus, depending upon circumstances. The masses of the products added together is less than the mass of the original nucleus. O The masses of the products added together is greater than the mass of the original nucleus