How many valence electrons does bromine have?

Valence electrons are the electrons that are present in the last shell. Bromine belongs to halogen family. All the elements in the group have the same valence electronic configuration that is 7

Bromine has an electronic configuration of 1s22s22p63s23p64s23d104p5

Valence shell configuration of bromine is 4s24p5. Therefore Bromine has 7 valance electrons.

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