Mod 7 Test Review and Sem 2 Exam D Review

1. Define:

Electron, Proton, Neutron (know charges, location, size)

Isotope

beta particle

alpha particle

Gamma radiation

Binding energy

Photoelectric effect

Radioactivity

nuclear force

nuclear fission

nuclear fusion

neutral atoms

A-number

Z-number

Compton effect

Wave interference

Photon

alpha decay

beta decay

gamma decay

2. What did Rutherford’s Gold Foil experiment give evidence of?

3. What is the Z number is an atom with 10 protons, 9, neutrons, 8 electrons?

4. The mass of the parts is always ___ than the mass of the whole when looking at nuclear masses.

5. Be able to give the work function and the threshold frequency of a experimental photo-missive material from a graph provided.

6. Using a graph provided be able to predict if a incoming photon of a given frequency would cause a photo-electron to be ejected.

7. From a half-life graph be able to predict the half-life of an isotope and the mass of the radio-active isotope remaining after a designated time interval.

8. From a half-life graph How many half-lives occur during a given interval of time.

9. If you started with a greater quantity of a material how would it affect the materials half-life?

10. Review lesson 7.14 intensely!

11. What subatomic particle determines what element you have?

12. Which equation would you use to determine the number of neutrons in a given nucleus when you are given the atomic number (Z) and atomic mass (A)?

13. Which particle will not be effect by the presence of an electric field?

14. A gas is collected from a radioactive material; upon inspection the gas is identified as helium. The presence of the helium indicates the radioactive sample is most likely decaying by …

15. What happens to the atomic number of an atom when the number of neutrons in the nucleus of that atom increases?

16. A neutral atom of Aluminum has 14 neutrons and 13 protons. How many electrons does this Aluminum have?

17. Light demonstrates the characteristics of

18. What is the de Broglie wavelength of a bullet of mass 0.0330 kg traveling at 300.0 m/s? (Planck’s constant, h = 6.630 E-34 Js)

19. The work function for a gold surface is 4.58 eV. What is the threshold frequency for a gold surface? (h = 4.14 E-15 eV)

20. ______is the most effective nuclear bullet.