4. Describe JJ Thomoson experiment that determined the mass-to-charge ratio of the electron.
5. Describe Millikan oil drop experiment. How did Millikan determine the charge
on an electron?
6. What is radioactivity? How was it discovered?
7. How do Gamma rays differ from X-rays? How are the two kind of ray
similar?
8. How is the discovery of radioactivity cause Dalton's Atomic theory to be
modified?
9. What is Atomic structure?
10. Who discovered the Atomic structure?
11. Radio station KF operates at frequency of 992 KHZ on AM band - what is the
wave length in meters of radio Waves
12.Calculate the energy in joules of a photon of red light that has a frequency of
3.73 X 1014 s