I'd like to get a general and clear picture of all the ways heat can be stored in a body. Suppose we have a kiln/furnace in which we put : particles a) electrons,... monoatomic molecules b) atoms of He... diatomic molecules c) atoms of H, O ... pieces of metal d) Fe, Cu.... compounf molecules e) inorganic, H20; organic etc. I have read that for elementary particles the temperature is considered their KE, that molecules can have also oscillation and rotational thermal energy, can you expand on that? What happens in the lattice of metals? does the increase of temp affect the motion of electrons?The nuclei cannot translate, do they increase the number od oscillations per sec, or also their rotational speed is affected? I cannot visualize how a particle can vibrate in 3 directions at same time, do you know of any app that simulates and show their thermal motion? Does the frequency od oscillation coincide with the temp? for example if tepm is 100° C, does a nucleus oscillate 373 * kB= 7.77*10^12 times a second?