8. the differences observed between control groups and experimentar
groups can identify
relationships.

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.

Which of the following are correct values for the ideal gas laws constant r

An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron