Isotopes have the same number of neutrons but a different number of protons different numbers of protons and neutrons the same number protons and the same number of neutrons the same number of protons but a different number of neutrons Binding energy is the amount of mass produced during a nuclear reaction the amount of mass that is converted to energy during a nuclear reaction the amount of energy released when an atom forms from its subatomic particles the amount of energy absorbed when an atom forms from its subatomic particles Which has a mass number of 1? proton neutron helium both A and B Which is the heaviest particle? deuterium beta particle neutron alpha particle
