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Roosevelt High School Unit 4 Review CP Physical Science Name_____________________ Period___ Date____/____/___ 1. Fill in the following table: subatomic location in particle the atom charge mass (a.m.u.) 2. What makes a nitrogen atom a nitrogen atom? 3. What do each of these parts represent? Carbon-14 ______________________ ______________________ ______________________ ______________________ ______________________ ______________________ 4. Color code the key below, and then draw a model of the following isotopes, including the nucleus. Proton Helium-3 Neutron Electron Helium-4 Roosevelt High School Unit 4 Review CP Physical Science Name_____________________ Period___ Date____/____/___ 5. Fill in the following table. Element symbol atomic # mass # protons neutrons electrons Iron-56 Polonium-210 Vanadium-51 Silver-108 119 50 64 Cu 22 26 13 12 6. Determine which of the following pairs of atoms are isotopes or different elements. Explain. a. Atom A: 6 protons and 6 neutrons Circle One: Isotopes or Atom B: 6 protons and 8 neutrons Different Elements Explain: b. Atom C: 92 protons and 143 neutrons Circle One: Isotopes Explain: or Atom D: 93 protons and 143 neutrons Different Elements Roosevelt High School Unit 4 Review CP Physical Science Name_____________________ Period___ Date____/____/___ 7. List 3 characteristics that these isotopes have in common: zinc-65 and zinc-66. a. b. c. 8. List 2 characteristics of the isotopes in number 7 that are different. a. b. 9. Write the name of each of the following isotopes. Example: 92 electrons and a mass of 238 amu Uranium-238 a. 22 protons and 26 neutrons ____________________ b. atomic number 76 and 114 neutrons ____________________ c. 39 electrons and 49 neutrons ____________________ d. atomic number 11 and mass number 23 ____________________ 10. What is the name of the element from the Nitrogen family in period 4? ___________________ 11. What is the name of the element from the Alkaline Earth Metals in period 6? ___________________ 12. Name the metalloids in the nitrogen family. ___________________ and ___________________ 13. How many valence electrons do the elements in group 2A have? ___________________ 14. Draw a Bohr model for aluminum below. a. How many electrons are in the first energy level? b. How many valence electrons does aluminum have? c. In which energy level are these valence electrons located? 15. Fill in the table on the back of this page. Symbol # Group Period Electrons Valence Lewis Structure Bohr Model Metalloid Nonmetal Metal Protons Neutrons Electrons CP Physical Science boron-11 argon-40 oxygen-16 sodium-23 Isotope Roosevelt High School Unit 4 Review Name_____________________ Period___ Date____/____/___
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