Bromine is a dense, volatile red-brown halogen and one of only two elements liquid at ordinary room conditions.
Atomic number
35
Category
Halogen
Period
4
Group
17
State
Liquid
Fun facts about Bromine
Its vapour is corrosive and toxic.
Bromide ions occur naturally in seawater and brines.
Silver bromide was central to traditional photographic film.
Common uses of Bromine
Flame-retardant compounds
Water-treatment chemicals
Historical photographic materials
Where Bromine sits in the periodic table
Bromine is classified as a halogen in period 4 and group 17 of the periodic table. Under the conditions represented in this reference, its state is liquid.
Quick chemistry revision
For quick revision, pair the symbol Br with atomic number 35 and the listed atomic mass 79.904. The summary, facts, and uses above keep those element properties together in one reference.