We all know that an atom starts moving faster when it's heated.But actually atom is not some new thing itself in the sense that it is just a bunch of electrons and protons. So, I think that same happens to the electrons or protons within. What does?

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    $\begingroup$ Electrons and protons don't move. Besides, there are discrete quantum states, and the first excited state of most atoms is already pretty high. Until you reach that temperature, nothing changes inside the atom. $\endgroup$ – Ivan Neretin Nov 3 '17 at 5:10
  • $\begingroup$ I am just a ninth grader so it would be better if you can make it simpler. $\endgroup$ – user54310 Nov 3 '17 at 15:52