Chemistry is the study of how atoms combine to form materials. So chemistry puts more attention to atoms (and electrons in atoms)but not the nucleus The change of atoms through the change of nucleus is not the center of chemistry. It belongs to Nuclear Science and Technology Chapter 4 (self study)Chemistry is the study of how atoms combine to form materials. So chemistry puts more attention to atoms (and electrons in atoms) but not the nucleus. The change of atoms through the change of nucleus is not the center of chemistry. It belongs to Nuclear Science and Technology. Chapter 4 (self study)