<P> Bromine ( Br ) is an element in period 4 , between selenium and krypton . Bromine is a halogen , never existing in pure form in nature . Bromine is barely liquid at room temperature , boiling at about 330 kelvins . Bromine is also quite toxic and corrosive , but bromide ions , which are relatively inert , can be found in halite , or table salt . Bromine is often used as a fire retardant because many compounds can be made to release free bromine atoms . </P>
<P> Bromine ( Br ) is an element in period 4 , between selenium and krypton . Bromine is a halogen , never existing in pure form in nature . Bromine is barely liquid at room temperature , boiling at about 330 kelvins . Bromine is also quite toxic and corrosive , but bromide ions , which are relatively inert , can be found in halite , or table salt . Bromine is often used as a fire retardant because many compounds can be made to release free bromine atoms . </P>
what is the name of the 4th halogen
what is the name of the 4th halogen
Bromine
Bromine