What principles of science (like facts, laws, and theories) might help explain why similar investigations conducted in many parts of the world could result in the same outcome?

the answer is b, have negligible mass

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

the answer is 12 as i may remember

: )