Apotassium atom (atomic number 19) and a bromine atom (atomic number 35) can form a chemical bond through a transfer of one electron. the potassium ion that forms has 18 electrons. what best describes the bromide ion that forms?
a it is a negative ion that has one less valence electron than a neutral bromine atom.
b it is a positive ion that has one less valence electron than a neutral bromine atom.
c it is a negative ion that has one more valence electron than a neutral bromine atom.
d it is a positive ion that has one more valence electron than a neutral bromine atom.