Question

what is the name of this ionic compound?
nh₄i
refer to a periodic table and a list of polyatomic ions.
ammonium iodine
ammonium iodide
ammonia iodine
ammonia iodide

Explanation:

Ionic compounds are named by stating the cation first and then the anion. Here, \(NH_4^+\) is the ammonium cation (a polyatomic ion) and \(I^-\) is the iodide anion (from iodine in the periodic table, and for monatomic anions, we change the ending to -ide). So we combine the names of these two ions.

Answer:

ammonium iodide