Plane is the right answer I thinkkkkk
A. Ammonium = polyatomic ion
B. Oxygen = compound
C. Silver = element
D. Nitrate = polyatomic ion
E. Helium = element
F. Water = polyatomic ion
G. Nitrogen = element
H. Carbon dioxide = compound
Answer:
The ion will repel the substance because it has more protons than electrons.
Explanation:
Bromine (Br) is the only element listed that is a diatomic element. I believe that Bromine is going to be your answer.