Question

Describe how you would draw the electron dot structure for bromine and then draw the structure.

Answer 1

The electron dot structure shows all of the electrons an atom possesses in its valence, or outer-most, shell. 
Bromine is in the seventh group of the periodic table, the halogens, so it has seven valence electrons. In order to represent, we simply write "Br", the chemical symbol of bromine and draw a circle around it with seven dots, each dot representing one valence electron.

Answer 2

Answer: Electron dot structures are the structures which represent the valence electrons of the element around the chemical symbol of the element.

Bromine is an element which belong to group 17 and is a halogen. Atomic number of bromine is 35 that means it contains 35 electrons, Thus the electronic configuration is represented as:

$[Ar]3d^{10}4s^24p^5$

Thus the valence electrons are 7. Thus 7 electrons are represented around chemical symbol of Bromine i.e. Br.