Chlorine is also a molecule and it was clearly this meaning that the author intended.

Cl2 --> 2Cl

Naw. That reaction requires energy.

Yes. In this case, it's called 'sunlight'.

The results of reaction

Cl2 --> 2Cl

from energy from "sunlight" is reactive and will reverse the reaction and get back to Cl2 or maybe

2H2O + 2Cl --> 2HCl + O2

hydrochloric acid, also very reactive.

It's still Chlorine, reactive and dangerous, destructive and has not broken down.

Yes, the Chlorine may react.

Again, once again, over again, yet again, one more time, the Chlorine will NOT

===>>>"break down"<<<===

Simple. High school science simple.

This whole exchange seems to have nothing, nichts, nil, nada to do with Chlorine or chemistry but just, for whatever reason, arguing just to be arguing.

I'm not interested in the arguing, and I have no more to say about the chemistry.