What chemical reactions are taking place inside the mouse?

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.

Can anyone answer these questions? ? i need it before 1: 00pm today

Someone do this for me. im really stuck