Chlorine will dissipate after a couple of days of its own accord the only way to keep chlorine in is to keep adding it.
clorine clorine
Isotopes
Clorine is never been a metal
The other members of group 17, the halogens. Specifically chlorine
No
Yup
No.
It stuff you find in pools
35.4527
yes at room temperature
25- 30degrees
Chlorine is a halogen.