KirbioCoffee KirbioCoffee 19-10-2022 Chemistry contestada HELP ME PLEASE!! ASAP!! Which of these pairs of elements is most likely to be part of a polyatomic ion? Ba and O (Barium and Oxygen) C and N (Carbon and Nitrogen) K and Br (Potassium and Bromine) Rb and Cl (Rubidium and Chlorine)