Which statement about bromide ions is correct?
They are oxidised by concentrated sulfuric acid.
They form a white precipitate with silver nitrate solution.
They form a precipitate with silver nitrate that is soluble in dilute liquid ammonia.
They have the electron configuration 1s22s22p63s23p63d104s24p51s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^51s22s22p63s23p63d104s24p5.
