  The odd $A$ proton drip line nucleus $^{17}$F has been studied in a
semi-microscopic model which couples proton quasiparticle motion to the
vibrational motion of the neighbouring even-even $^{18}$Ne core. The
experimentally observed low lying excitation spectrum, electric quadrupole
moment, magnetic dipole moment, $B(E1)$ and $B(E2)$ values have been fairly
well reproducd. The calculated rms radius of the first excited state is well
reproduced and is found to be larger than that of the ground state which agrees
with the experimental observation.
