My question concerns my understand of the mechanics of the absorption of Photons by the components of atoms. I will use a common real-world example to facilitate my understanding of the concept. 1. When a rock (for example) sits in the sunlight, the rock warms to the touch. I believe this is a result of the absorption of photons by atoms, more specifically by electrons orbiting the nucleus inside those atoms. Is this correct, and do any nuclear objects (protons / neutrons) also absorb these sun-generated photons? 2. Electrons that orbit the nucleus jump to a higher orbit once a photon is absorbed, but only absorbs photons that are exactly energetic enough to force it into a higher orbit. Is this correct, and if so, what happens to the less-energetic photons (or more energetic photons)? Reflected? 3. What makes the rock "feel" hot to the touch? I assume this is a result of those same electrons falling back to a lower orbit, and discharging a photon, which is the source of the heat we "feel". Is this correct? 4. Assuming my statement in #3 is correct, what keeps those electrons from immediately discharging their photons once the sun sets (rock in darkness), in a flash of brilliance? Why does it take so long for a rock to cool down to ambient temperature? Are these electrons in a higher orbit not unstable and naturally 'want' to fall to a lower orbit? Lots of questions, but I believe they are fairly related. Thanks in advance.