In an element's square on the periodic table, the number with the greatest numerical value represents the number of neutrons.
number of electrons.
atomic number.
atomic mass.

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

•hydration •dissociation •dissolving which one goes to which

Why is it incorrect to balance a chemical equation by changing the subscripts? explain.