Answer :
Bromine possesses 35 electrons in its ground state, which is the same number of protons required to form a neutral atom. The bromine atom needs to pick up one electron in order to become a bromide ion.
The anion that forms when bromine obtains an electron is known as the bromide ion and is negatively charged. The negatively charged form (Br) of the halogens group element bromine is known as a bromide ion. Most bromides are colorless. Due to its ability to satisfy the octet rule while maintaining a negative one charge, it is a particularly stable ion.
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