4. Why are there no mirror nuclei with A "> 40?
5. From a table of nuclei, select a stable nucleus in which the next unfilled level is a neutron level. See Fig. 2.
6. What is the isobaric spin projection (TJ-) for all of the levels in รท108? What values of T are possible and what values are not possible for the various levels?
7. In Fig. 5 show that, assuming charge independence, all levels in c14 should have corresponding levels in N14 but that the converse is not necessarily true