Charge of nucleus is always positive whether it is element or isotope.
<span>the elements in groups1a, 2a, 3a have positive charges according to their group numbers</span>
Answer:
It is a salt of two polyatomic ammonium ions and one polyatomic sulfate ion
Explanation:
Ammonium Sulfate is an ionic compound formed by two polyatomic ions, Ammonium NH+4 and Sulfate SO−4 . ... Therefore, it will take two +1 ammonium ions to balance the one -2 sulfate ion. This will make the formula for Ammonium Sulfate (NH4)2SO4
It would be 35.8 Calories or calories. Not sure about that part. Hope this helps though.
