Chapter 6 Test 1. Mendeleev discovered that the elements had repeating properties when he arranged them in order of increasing? Section 6.1 a. Atomic mass b. Chemical reactivity c. Metallic character d. Abundance on earth 2. From top to bottom within a group of the periodic table, atomic radius tends to? Section 6.3 a. Increase b. Decrease c. Remain approximately the same d. Change in an irregular pattern 3. From left to right across a period of the periodic table, atomic radius tends to? Section 6.3 a. Increase b. Decrease c. Remain approximately the same d. Change in an irregular pattern 4. From top to bottom within a group of the periodic table, ionization energy tends to? Section 6.3 a. Increase b. Decrease c. Remain approximately the same d. Change in an irregular way 5. What property did Mendeleev use to develop and organize his periodic table? Section 6.1 a. In order of increasing atomic mass b. In order of increasing atomic number c. In order of increasing density d. Density of the element 6. How are elements arranged in the modern periodic table? Section 6.1 a. In order of increasing atomic mass b. In order of increasing atomic number c. In order of increasing density d. In alphabetical order 7. What are the three broad classes of elements? Section 6.1 a. Solids, liquids, and gases b. Metals, nonmetals, and gases c. Metals, liquids, and noble gases d. Metals, nonmetals, and metalloids 8. Which elements are examples of nonmetals? Use periodic table a. Sodium, potassium, calcium b. Silicon, germanium, astatine c. Barium, iron, cobalt d. Argon, sulfur, oxygen 9. Which three elements have properties most similar to one another? Use periodic table a. Potassium, calcium, and scandium-which are adjacent to each other in the fourth row, or period, of the periodic table b. Magnesium, calcium, and strontium-which are adjacent to each other in the second column, or group, of the periodic table c. Cadmium, calcium, and carbon-which are adjacent to each other on an alphabetical list of the elements d. Oxygen, chlorine, and helium-which are located at or near the upper right corner of the period table 10. Which two elements have properties most similar to those of the element sodium? Use periodic table a. Lithium and potassium b. Magnesium and aluminum c. Selenium and scandium d. Krypton and xenon 11. What information is often included in a periodic table? Use periodic table a. Element name and symbol b. Atomic number c. Atomic mass d. All of the above 12. Using a periodic table, classify the element barium. Use periodic table a. Alkali metal b. Alkaline earth metal c. Transition metal d. Halogen 13. Which of these elements are transition metals: Cu, Sr, Cd, Au, Ge, Co? Use periodic table a. Cu, Au, Ge, Co b. Sr, Cd, Au c. Cu, Cd, Au, Co d. All 7 elements 14. In general, how does atomic radius change within groups and across periods? Section 6.3 a. It increases from top to bottom within a group, and decreases from left to right across a period. b. It increases from top to bottom within a group, and increases from left to right across a period. c. It increases from bottom to top within a group, and increases from left to right across a period. d. It increases from top to bottom within a group, and remains about constant throughout a period. 15. When do ions form? Section 6.3 a. When an electron changes from one atomic orbital to another b. When an electron changes speed inside its orbital c. When electrons are shared equally by two or more atoms d. When electrons are transferred between atoms 16. How did the development of the modern periodic table lead to the identification of the periodic law? Section 6.1 a. The pattern of chemical and physical properties repeats from one group to the next. b. The pattern of chemical and physical properties creates group and periods with equal; number of elements c. The pattern of chemical and physical properties repeats within a period d. The pattern of chemical and physical properties repeats from one period to the next 17. Which elements are examples of metalloids? Use periodic table a. Silicon, germanium, astatine b. Hydrogen, nitrogen, chlorine c. Sodium, potassium, calcium d. Argon, xenon, radon 18. Which observation or conclusion helped scientists develop the first periodic table? Section 6.1 a. The properties of elements are affected by the number of electrons in their atoms b. All atoms of a given element have similar physical and chemical properties c. Groups of elements have similar physical and chemical properties 19. How does first ionization energy tend to vary within groups and across periods? Section 6.3 a. It increases from top to bottom within a group, and increases from left to right across a period b. It decreases from top to bottom within a group, and decreases from left to right across a period c. It decreases from top to bottom within a group, and increases from left to right across a period d. It decreases from top to bottom within a group, and remains about the same throughout a period 20. Using a periodic table, classify the element chlorine. Use periodic table a. Alkali metal b. Alkaline earth metal c. Transition metal d. Halogen 21. Using a periodic table, classify the element lithium. Use periodic table a. Alkali metal b. Alkaline earth metal c. Transition metal d. Halogen 22. Using a periodic table, classify the element beryllium. Use periodic table a. Alkali metal b. Alkaline earth metal c. Transition metal d. Halogen 23. Of the elements Pt, V, Li, and Kr, which is a nonmetal? Use periodic table a. Pt b. V c. Li d. Kr 24. Which subatomic particle plays the greatest part in determining the properties of an element? Section 6.2 a. Proton b. Electron c. Neutron d. Nucleus 25. What is the charge of a cation? Section 6.3 a. A positive charge b. No c. A negative charge d. The charge depends on the size of the nucleus 26. Which of the following statements is true about ions? Section 6.3 a. Cations form when an atom gains electrons b. Cations form when an atom loses electrons c. Anions form when an atom gains electrons d. Anions form when an atom loses protons 27. Which of the following statements is true about ions? Section 6.3 a. Anions are positively charged ions. b. Cations are common among nonmetals c. Charges for ions are always written as numbers followed by a plus or minus sign d. When an anion forms, more electrons are transferred to it 28. By 1700, how many elements had scientists discovered and isolated? Section 6.1 a. 7 b. 13 c. 27 d. 46
