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Name: _______________________________________ Per: ______ Chapter 6 Periodic Trends Review 1. What property did Mendeleev use to organize his periodic table? 2. How are elements arranged on the modern periodic table? 3. Name the three broad classes of elements. 4. Identify each property below as more characteristic of a mental or a nonmetal. a. a gas b. brittle c. malleable d. poor conductor of electric current e. shinny 5. In general, how are metalloids different from metals and nonmetals? 6. Elements in the same period have the same…? 7. Elements in the same group have similar…? 8. Based on their locations in the periodic table, would you expect carbon and silicon to have similar properties? Explain your answer. 9. What is the common group name for the following: Group 1 Group 2 Group 17 Group 18 Group 3 -12 10. Where are the noble gases located on the periodic table? 11. Which noble gas does not have eight electrons in its highest occupied energy level? 12. Define ionization energy – 13. Define electronegativity 14. Identify the trends for each of the five properties covered in this chapter: a. Metallic Character b. Atomic Radius c. Ionization Energy d. Ion Size e. Electronegativity 15. Which of the following properties increases as you move across a period from left to right? I electronegativity II ionization energy III atomic radius a. b. c. d. I and II only I and III only II and III only I, II, and III 16. When the elements in each pair are chemically combined, which element in each pair has a greater attraction for electrons? a. Ca or O b. O or F c. H or O d. K or S 17. Which sphere would most likely represent a potassium atom, K? Which sphere would most likely represent a potassium ion, K+? If the spheres represent an atom and an anion of the same element, which sphere represents the atom and which represents the anion? 18. If you plotted atomic radius versus first ionization energy, would the graph reveal a direct or inverse relationship? If you plotted atomic radius versus electronegativity, would the graph reveal a direct or inverse relationship? If you plotted first ionization energy versus electronegativity, would the graph reveal a direct or inverse relationship? 19. Explain why fluorine has a smaller atomic radius than both oxygen and chlorine. 20. Would you expect metals or nonmetals in the same period to have higher ionization energies? Give a reason for your answer. 21. In each pair, which ion is larger? a. Ca2+, Mg2+ b. Cl−, P3− c. Cu+, Cu2+ 22. Electronegativity values are higher for a. metals than for nonmetals b. nonmetals than for metals c. noble gases than for metals d. noble gases than for nonmetals 23. In any period on the periodic table, the noble gas always has the a. smallest ionization energy b. greatest ionization energy c. ion with the largest charge d. same properties as other elements in the period 24. Which of the flowing properties decreases as you move across a period from left to right? a. electronegativity b. ionization energy c. atomic radius d. nuclear charge 25. Which properties are most common in nonmentals? a. low ionization energy and low electronegativity b. low ionization energy and high electronegativity c. high ionization energy and low electronegativity d. high ionization energy and high electronegativity 26. In which area of the periodic table are the elements with the strongest nonmetallic properties located? a. lower left b. upper left c. lower right d. upper right 27. At which location in the periodic table would the most active metallic element be found? a. in Group 1 at the top b. in Group 1 at the bottom c. in Group 17 at the top d. in Group 17 at the bottom 28. Which element attains the structure of a noble gas when it becomes a 1+ ion? a. K c. F b. Ca d. Ne