Rutherford's Nuclear Model has three basic ideas:
1. Most of the atom's mass and all of its positive charges are conatined withing a small core known as the nucleus.
2. The majority of the volume of an atom is empty space, which contains electrons throughout it.
3. The negative electrons and the positive protons are equal and number, so the atom is electrically neutral
It was revolutionary because it disproved the plum-pudding model, refer to this link for more info: http://answermenu.com/813/describe-rutherfords-experiment-experiment-pudding-wrong