Which of the following nuclear configurations would be most stable? A nucleus with more than 83 protons
A nucleus with less than 40 total nucleons
A nucleus with an odd number of protons and an odd number of neutrons
A nucleus with more than 209 total nucleons

the answer is a. hope this .

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.