Chlorine is a chemical element with symbol Cl and atomic number 17. Chlorine is in the halogen group (17). Chlorine is most commonly found in sodium chloride. . It is the second most abundant halogen and 21st most abundant chemical element in Earth's crust. The great oxidizing potential of chlorine led it to its bleaching and disinfectant uses, as well as uses of an essential reagent in the chemical industry. As a common disinfectant, chlorine compounds are used in Swimming Pools to keep them clean and sanitary.
Is it Solid?
Because their valence shells are full after they bond and don't have "free electrons" to bond with whatever they come into contact with.
Chlorine is used to purify drinking water. It kills any germs and microbes in the water so that they do not make people sick who drink the water. It is also used in swimming pools for the same reason.
Normal chroline level in pool water is nothing more than tap water out of the faucet. As long as the pool water tests normal when testing with your pool test kit, you can let your grass enjoy the water. I do it all the time when draining rain water off my above the ground pool. I put a pump in the pool and run a garden hose to the sprinkler. The grass does well.