Hi, I just wander what hapeens if photon which energy is higher than difference of adjacent energy levels collide with atom? How does Excess energy go? transmiting atom by form of photon or giving motional energy to the atom? Second Question is What does process ocurrs when enough voltage to make dielectric breakdown imposes to gas? I know electric force imposing positive and negative charge 'tear' atom and separate opposite charge, but in aspect of energy, just another external potential is added to the atom and i can't image tearing atom in this view. How can you explain tearing atom with aspect of energy, not force?