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QUESTION
How many valence electrons does bromine have?
found in the s and p orbitals of the highest energy.
Bromine has an of ##1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5## the are in the 4s and 4p orbitals giving Bromine 7 valence electrons.
I hope this was helpful. SMARTERTEACHER
