Chemistry, 30.08.2019 16:30 brisafe2023
A. what is the total number of valence electrons in the polyatomic ion of ammonium? 5, 6, 7, 8, 10
Answers: 3
is formed when ammonia 
reacts with hydrogen ion 
the nitrogen has 5 valence electron and there are 4 hydrogen each has 1 valence electron 
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