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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)

User Dessalines
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1 Answer

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Answer:

Option B) Ba and O (Barium and Oxygen)

Step-by-step explanation:

Barium and oxygen elements are the pairs which are most likely to be the part of polyatomic ion. As barium has +2 charge and Oxygen has -2 charge which will be settle once they form an polyatomic ion.

User Marchy
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