BROMINE AR
Bromine (chemical symbol Br) is a highly corrosive,
reddish-brown, volatile element found in liquid form.
Bromine—along with fluorine, chlorine, and iodine—is part of a family of elements known as the halogens.
Bromine has a large variety of uses including in agricultural chemicals, insecticides, dyes, pharmaceuticals, flame-retardants, furniture foam, gasoline, plastic casings for electronics, and film photography, according to the Royal Society of Chemistry
Breathing bromine gas could cause you to cough, have trouble breathing,
get a headache, have irritation of your mucous membranes (inside your mouth, nose, etc.),
A bromide ion is the negatively charged form (Br−) of the element bromine, a member of the halogens group on the periodic table.