Answer:
Boil the water and stir in potassium nitrate. If it doesn't all dissolve, you can cook it on the stove or microwave it until the water boils again. Remove the solution from heat, but let it cool slowly for the best crystal formation.
The rows are the one line of elements that goes from left to right horizontally. A column is a line of elements that goes vertically.
Explanation:
high energy to Low energy
=the electron gains energy (K.E)