1. Core: Where nuclear fusion takes place.
2. Radiative Zone: Energy is transported outward through radiation.
3. Convective Zone: Energy is transported outward through convection.
4. Photosphere: The visible surface of the Sun.
5. Chromosphere: A thin layer above the photosphere.
6. Corona: The outermost layer of the Sun's atmosphere.
Therefore, the order you asked for is: Photosphere, Chromosphere, Corona.