As you proceed down the periodic table, the metallic character becomes stronger. This is because as the atomic radius increases, there is less attraction between the nucleus and the valence electrons due to the greater distance between them, making electrons simpler to shed.
Answer:
It is a combination reaction; nitrogen and hydrogen combine to form ammonia.
Explanation:
27.6 - 22.3 = 5.3; you simply subtract the old density from the new density.
