Examine each statement about nuclear forces and write ‘True’ or ‘False’. In each case give a one-sentence justification.
(i) If the nuclear force had no repulsive core at separations below 0.5fm, all nuclei would collapse to a point.
(ii) The saturation property explains why nuclear density is approximately constant for all nuclides.
(iii) Charge independence of nuclear force implies that the neutron–neutron interaction is about the same strength as the proton–proton interaction.