Rutherford's experiment with alpha particle scattering by gold foil established that O positive charge not evenly distributed throughout an atom. electrons have a negative charge. electrons have a positive charge. atoms are made of protons, neutrons, and electrons. protons are 1840 times heavier than electrons. QUESTION 17 What is the ion that zinc forms? (write your answer with no spaces, like this: Na+1) QUESTION 18 What is the ion that selenium forms? (write your answer with no spaces, like this: Na+1) OO000