Final answer:
The daughter nucleus of the alpha decay of Am-241 is Np-237.
Step-by-step explanation:
The daughter nuclei of the alpha decay of Am-241 is Np-237.
During alpha decay, an alpha particle (two protons and two neutrons) is emitted from the nucleus. This results in the daughter nucleus having an atomic number that is two less than the parent nucleus and a mass number that is four less.
Am-241 has an atomic number of 95 and a mass number of 241. After alpha decay, the daughter nucleus Np-237 has an atomic number of 93 and a mass number of 237.