Heat, light and electricity can all be used to move electrons between orbitals. The electrons are what allow atoms to react with each other in chemical reactions, and they are also what cause certain compounds to emit light when heated. When an atom is heated up, it starts to vibrate intensely. I hope this helped you. :)
one electron will enter the electron cloud of an atom, and another one will leave, continuing the flow of electrons through the conductor. When a solid is heated up, the atoms in it move around.
