1 The atomic mass of titanium is atomic mass units. This atomic mass represents the
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1 Direct: Answer the following question(s). 1 The atomic mass of titanium is atomic mass units. This atomic mass represents the A. total mass of all the protons and neutrons in an atom of Ti B. total mass of all the protons, neutrons, and electrons in an atom of Ti C. weighted average mass of the most abundant isotope of Ti D. weighted average mass of all the naturally occurring isotopes of Ti 2 What is the mass number of the most common isotope of Beryllium? The molar mass is A. 9 Be B. 10 Be C. 11 Be D. 12 Be E. There is an even distribution of 8 Be, 9 Be and 10 Be. Generated On October 16, 2013, 5:06 PM PDT Page 1
2 Direct: Read the passage below and answer the question(s) that follow. Periodic Table 3 Bromine (Br) is classified as what type of element? A. metal B. metalloid C. halogen D. both A and C 4 Which of the following elements has the lowest atomic mass? A. Bromine (Br) B. Barium (Ba) C. Nickel (Ni) D. Arsenic (As) 5 Which of the following elements is most reactive? A. francium B. flourine C. uranium D. helium 6 Which of the following lists elements from lowest to highest atomic mass? A. Rb, Ca, and Ar B. Zr, Pt, and Au C. Fe, Co, and Ni D. I, Ge, and Si 7 Which Group on the periodic table has 3 electrons available for bonding? A. 2 B. 13 C. 14 D. 15 Generated On October 16, 2013, 5:06 PM PDT Page 2
3 Direct: Answer the following question(s) relating to the passage titled "Periodic Table". 8 According to the information on the periodic table and the number of electrons available for bonding, an element in Group 2 is most likely to bond with a single atom from Group. A. 14 B. 15 C. 16 D All of the atoms in Group of the periodic table have 7 valence electrons A. 2 B. 7 C. 1 D According to the information on the periodic table, how many valence electrons would an atom of oxygen (O) contain? A. 2 B. 4 C. 6 D According to the information on the periodic table, which of the following elements would have 8 valence electrons? A. iron (Fe) B. oxygen (O) C. magnesium (Mg) D. neon (Ne) 12 Arrange the following elements from smallest to largest in size. Li, Li +, Rb, Cs A. Li < Li + < Rb < Cs B. Cs < Rb < Li < Li + C. Li < Rb < Cs < Li + D. Li + < Li < Rb < Cs 13 Which of the following elements is classified as a non metal? A. Te B. H C. Ce D. As Generated On October 16, 2013, 5:06 PM PDT Page 3
4 Direct: Answer the following question(s). 14 This image represents part of a crystal of a salt composed of lithium and fluorine. The particles of lithium and fluorine in this salt crystal are MOST likely. A. neutrally charged B. negatively charged C. positively charged D. oppositely charged 15 This image represents part of a crystal of a salt composed of lithium and fluorine. What force is MOST likely responsible for holding atoms F1 and Li1 together? A. covalent bonding B. polar covalent bonding C. electrostatic attraction D. strong nuclear force 16 Which of these opt MOST likely represents how the of a salt are combined? A. B. C. D. Generated On October 16, 2013, 5:06 PM PDT Page 4
5 Direct: Read the passage below and answer the question(s) that follow. Crystal Structure of NaCl 17 The crystal is made up of A. positive sodium and negative chloride B. negative sodium and negative chloride C. positive sodium molecules and negative chloride molecules. D. positive sodium and positive chloride 18 The positive sodium in the structure are called A. an B. cat C. ionic bonds. D. salts. 19 The crystal structure of NaCl in the diagram is held together by A. subatomic forces. B. nuclear forces. C. hydrogen bonds. D. electrostatic attraction. Stop: You have finished the assessment. Generated On October 16, 2013, 5:06 PM PDT Page 5
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