Assessment Chapter 5 Pre-Test Chapter: The Periodic Law Use the periodic table below to answer the questions in this Chapter Test.
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1 Assessment Chapter 5 Pre-Test Chapter: The Periodic Law Use the periodic table below to answer the questions in this Chapter Test. In the space provided, write the letter of the term or phrase that best completes each statement or best answers each question. 1. Mendeleev organized the chemical elements based on their a. symbols. b. properties. c. atomic numbers. d. charges. 2. A horizontal row in the periodic table is called a(n) a. family. b. group. c. octet. d. period. Modern Chemistry 1 The Periodic Law
2 3. The periodic law states that a. no two electrons with the same spin can be found in the same place in an atom. b. the physical and chemical properties of the elements are functions of their atomic number. c. wave patterns repeat at regular intervals. d. the chemical properties of elements can be grouped according to periodicity. 4. An element with the general electron configuration ns 2 np 1 for its outermost electrons would be in Group a. 2. b. 13. c. 14. d When a carbon atom is in its ground state, how many electrons does it have in its outermost shell? a. 1 b. 2 c. 3 d Which of the following elements is most similar in behavior to calcium? a. magnesium b. sodium c. sulfur d. chlorine 7. Which periodic group or family of elements is not correctly matched with its common family name? a. Group 2: alkaline- earth metals b. Group 3: alkali metals c. Group 17: halogens d. Group 18: noble gases 8. The electron configurations of main-group elements end in a. d and f orbitals. b. s and p orbitals. c. s and d orbitals. d. p and d orbitals. Modern Chemistry 2 The Periodic Law
3 9. Which of the following elements is a transition metal? a. calcium b. iron c. sodium d. sulfur 10. All the alkali metal elements are found on the periodic table in a. Group 1. b. Group 2. c. Period 1. d. Period A measure of the ability of an atom in a chemical compound to attract electrons from another atom in the compound is called a. electron affinity. b. electron configuration. c. electronegativity. d. ionization potential. 12. Which of the following elements has the greatest atomic radius? a. Al b. S c. Si d. C 13. Which of the following elements has the lowest electronegativity? a. C b. F c. Li d. O 14. Which of the following elements has the greatest ionization energy? a. Ga b. K c. Bi d. As 15. Which of the following elements has an electron affinity of 0 kj/m? a. Br b. As c. Ar d. I Modern Chemistry 3 The Periodic Law
4 16. Which of the following elements have full outer energy levels when they are in the ground state? a. alkali metals b. noble gases c. halogens d. transition metals 17. In which period is an element that has the electron configuration 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 1 when it is in its ground state? a. Period 1 b. Period 2 c. Period 3 d. Period Which of the following elements is not a metal? a. H b. K c. Na d. Fr 19. For atoms of p-block elements, the total number of electrons in the highest occupied level is equal to the a. period number. b. group number. c. period number minus 10. d. group number minus As electrons add to s and p sublevels in the same main energy level, they are pulled closer to the more highly charged nucleus, causing a. the electron cloud around the nucleus to expand. b. atoms to lose electrons more easily. c. atomic radii to decrease in size. d. a noble gas configuration. 21. Which electron configuration would result in the largest negative electron affinity? a. [He]2s 1 b. [He]2s 2 2p 2 c. [He]2s 2 2p 3 d. [He]2s 2 2p 5 Modern Chemistry 4 The Periodic Law
5 22. In forming an ion, from which sublevel would an atom of nickel lose electrons first? a. 4s b. 3d c. 3p d. 3s 23. Which one of the following groups contains atoms that, in compounds, have the lowest attraction for electrons? a. Group 1 b. Group 2 c. Group 16 d. Group Which ionization energy is generally the largest? a. first ionization energy b. second ionization energy c. third ionization energy d. fourth ionization energy 25. The metalloids are located on the periodic table between a. halogens and noble gases. b. nonmetals and metals. c. alkaline-earth metals and other metals. d. alkali metals and transition metals. Modern Chemistry 5 The Periodic Law
7. What is the likeliest oxidation number of an element located in Period 3 and Group 16? a. +2 b. +3 c. -3 d The amount of energy required to
1. Which of the following is the most important factor in determining the properties of an element? a. Atomic mass b. Atomic radius c. Periodic table position d. Electron configuration 2. Similar properties
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