Name: Per: Date: Unit 3: The Atom Review Worksheet
1. List the 5 essential points of Dalton’s Atomic Theory. 2. Explain Rutherford’s experiment? 3. Define atom: 4. Draw a diagram of carbon, and label the protons, neutrons, and electrons: PROTON NEUTRON 5. List the charge for the parts of the atom: 6. What is the atomic number (_____), and (for a neutral atom) what does it tell us? 7. What is the atomic mass, and (for a neutral atom) what does it tell us? 8. Define isotope: 9. How are the isotopes of a particular element alike? 10. Define ion: Find number of protons, electrons and neutrons for Ca+2 ELECTRON 11. Fill in the following table Element Symbol Atomic # # of P+ Atomic Mass # of n0 # of e‐ Uranium 92 Chlorine 30 12. What is “hyphen notation” when describing isotopes? a. What is the hyphen notation of uranium with a mass of 235? b. What is the hyphen notation and nuclear symbol for uranium with a mass of 235? 13. What is average atomic mass? 14. What is the average atomic mass of copper? SHOW YOUR WORK! (Copper‐63 is in 69.17% abundance, Copper‐65 is in 30.83% abundance) 15. In making a graph… a. What is the independent variable? b. What is the dependent variable? 16. What is mass defect? X or Y axis? X or Y axis? 17. What are the 4 particles involved in nuclear reactions, and what are their abbreviations? 18. Show the alpha emission of 22688Ra : 19. Show the beta emission of 23992U: 20. Describe alpha, beta and gamma particle (their size, penetration level etc) 21. What is chain reaction? 22. Describe how the nuclear power plant operates (where the reaction occurs, what the control rods do etc) 23. What is half‐life? 24. The half life of I‐123 is 13 hours. How much of a 64mg sample is left after 39 hours? 25. Describe fusion. Fission?