Why is the symbol for bromine BR on the periodic table?

Answer 1

While giving symbols to the elements the first letter of the name of the element was used. But in case of two or more elements with same initial the next elements were given symbols containing first two letters. Since boron has symbol B, so bromine got the symbol Br.

Answer 2

The symbol for bromine is Br, not BR. The symbol is based on the element's name, which in this case is derived from the Greek word "bromos" meaning stench. The first letter is always capitalized on the Periodic Table symbols.