Ok, from most to least stable (resolved?) chord tone/scale degree, order the following: For Major scales: Root Third Fifth Seventh Ninth Eleventh (or #11 I guess?) Thirteenth For Minor scales: Root Third Fifth Seventh Ninth Eleventh Thirteenth For major scales, from most to least stable scale degree, I would say (from just playing around with the scale)... 1) Root 2) Fifth 3) Third 4) Seventh ?) Ninth ?) Eleventh ?) Thirteenth So, the tonic is obviously the most resolved note. The fifth is next, and yeah, third is probably next, and then I am not too sure after that.