<span>it must be a compound of a polyatomic cation (i think ammonium might be the only</span>
Answer: Sodium
Explanation: The sodium has only one electron at the outer layer.
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Answer Expert Verified
Assuming that the ammonium sulfide formula is (NH4)2S then you can see that there are 2 nitrogen, 8 hydrogen and 2 sulfur atoms for every ammonium sulfide.
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Explanation:
Characteristic of matter that is not associated with its change in chemical composition.
Because they are not conductors of electricity.