does it have various zones in it?
Yes, radioactive zone and convection zone
Sun
The Sun's convection zone extends from 0.7 solar radii (500,000 km) to near the surface.
what is the name of the suns surface layer Photosphere what is the range of temperature there? It is defined to have a temperature given by the effective temperature in the Stefan–Boltzmann law. what other layers it has? Chromosphere, corona
wiki:25659529
Sun [SEP] Convective zone
Turbulent convection in this outer part of the solar interior sustains "small-scale" dynamo action over the near-surface volume of the Sun. The Sun's thermal columns are Bénard cells and take the shape of hexagonal prisms.