Chlorine is not a noble gas, those are limited to Helium, Neon, Argon, etc. It is a reactive gas and a decent oxidant, hence its toxicity.
More importantly, while Cl2 (chlorine) is a gas, sodium hypochlorite, bleach, is a solid when dry, but does form Cl2 in water. But there's no point in risking drying it and having some crystallization of the solid.
In any case, Lauren your wood should be completely salvageable. As recomended, soak it well for several days, keep it wet and keep the water trunover going. Next soak it in water with a heavy dose of dechlorinator, like 5x the recomended dose. Give it lots of time and don't be shy about draining the dechlor. mixture and refilling and redosing. It is very porous, but just as the bleach can get in, so can the declorinator.