Question 3 Explain Rutherford's famous alpha particle scattering experiment by answering the following questions.
Part A
What questions and/or thoughts prompted him to do this experiment?

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

answerto predict;

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.