<p>Minerals Quiz</p><p>INSTRUCTIONS: Multiple Choice: Mark the letter of the best correct answer on your answer sheet.</p><p>1. The central region of an atom is called the ____. a. proton c. nucleus b. electron d. neutron 2. The smallest particle of an element that still retains all the element’s properties is a(n) ____. a. compound c. isotope b. atom d. mineral 3. If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus? a. 6 c. 14 b. 20 d. 8 4. Which subatomic particles are most involved in chemical bonding? a. protons c. neutrons b. electrons d. isotopes 5. Which of the following is NOT a characteristic of minerals? a. crystalline structure c. definite chemical composition b. formed by inorganic processes d. either liquid or solid 6. What is a naturally occurring, inorganic solid with an orderly crystalline structure and a definite chemical composition? a. a mineral c. an isotope b. an element d. a compound 7. Why is ice in a glacier considered to be a mineral, but water from a glacier is not? a. Water is not naturally occurring. b. Water does not have a chemical composition. c. Ice is not naturally occurring. d. Ice is a solid, but water is not. 8. Which of the following properties is generally the least useful in identifying minerals? a. hardness c. cleavage b. streak d. color 9. The appearance or quality of light reflected from the surface of a mineral is called ____. a. streak c. cleavage b. color d. luster 10. The resistance of a mineral to being scratched is called ____. a. streak c. hardness b. fracture d. cleavage 11. The color of the powdered form of a mineral is called ____. a. cleavage c. luster b. streak d. fracture 12. Mohs scale is used to determine what property of minerals? a. cleavage c. hardness b. density d. luster 13. What is the hardness of an unknown mineral that scratches glass, but will not scratch quartz? a. 5.0 c. 6.0 b. 7.5 d. 8.0 14. The tendency of minerals to break along smooth flat surfaces is called ____. a. fracture c. streak b. cleavage d. crystal form 15. What is the uneven breakage of a mineral called? a. fracture c. crystal form b. cleavage d. hardness 16. What determines whether a mineral will show cleavage or break in irregular fractures? a. hardness c. internal atomic structure b. external shape d. density 17. What determines the properties of a mineral? a. size and shape c. composition and structure b. composition and age d. structure and size 18. You are given an unknown mineral to identify. It has a nonmetalli, vitreous luster, a hardness of 2.0, perfect cleavage in one direction, and poor cleavage in the other two directions. You also see that it has a fibrous quality on one of its axes. What is the name of the mineral? a. talc c. halite b. muscovite d. gypsum 19. Your are given a mineral that cleaves very easily into very flat and thin sheets. It has a nonmetallic luster, and a harness of 2.5. Its color ranges from dark to very light. What is the name of the mineral? a. phlogopite c. mica b. biotite d. talc 20. You are given an unknown mineral and asked to identify it. The mineral has a nonmetallic luster, is transluscent, has perfect cleavage on three axes at an angle NOT 90 degrees, and a hardness 3.0, with a white streak. What is the name of the mineral? a. gypsum c. calcite b. chlorite d. halite 21. You are given an unknown mineral and asked to identify it. The mineral is a dark color, has a dull metallic luster, it is opaque, and has fracture instead of cleavage, a red-brown streak, and a hardness 5.0 to 6.5. What is the name of the mineral? a. pyrite c. magnetite b. chalcopyrite d. hematite 22. You are given an unknown mineral and asked to identify it. The mineral has a metallic luster, cleavage is very good in 3 directions when crystals are large enough to see. It has black streak, and a hardness 6.0 to 6.5. What is the name of the mineral? a. hematite c. chalcopyrite b. pyrite d. graphite 23. Which of the following is NOT one of the eight most common elements in Earth’s continental crust? a. carbon c. oxygen b. silicon d. aluminum 24. The most abundant element in Earth’s continental crust (by weight) is ____. a. oxygen c. calcium b. silicon d. iron 25. An atom that loses or gains electrons is called a(n) ____. a. isotope c. neutron b. proton d. ion 26. Atoms containing the same numbers of protons and different numbers of neutrons are ____. a. isotopes c. neutrons b. ions d. compounds 27. Isotopes of the same element differ in the number of ____. a. protons c. neutrons b. electrons d. nuclei 28. The mass number of an atom is obtained by totaling the number of ____. a. electrons and protons c. protons and neutrons b. electrons and neutrons d. neutrons and isotopes 29. What type of chemical bond forms between positive and negative ions? a. covalent c. ionic b. metallic d. isotopic Minerals Quiz Answer Section</p><p>MULTIPLE CHOICE</p><p>1. ANS: C DIF: L1 OBJ: 2.2 2. ANS: B DIF: L1 OBJ: 2.2 3. ANS: D DIF: L2 OBJ: 2.2 4. ANS: B DIF: L1 OBJ: 2.4 5. ANS: D DIF: L1 OBJ: 2.6 6. ANS: A DIF: L1 OBJ: 2.6 7. ANS: D DIF: L2 OBJ: 2.6 8. ANS: D DIF: L1 OBJ: 2.10 9. ANS: D DIF: L1 OBJ: 2.11 10. ANS: C DIF: L1 OBJ: 2.11 11. ANS: B DIF: L1 OBJ: 2.11 12. ANS: C DIF: L1 OBJ: 2.11 13. ANS: C DIF: L2 OBJ: 2.11 14. ANS: B DIF: L1 OBJ: 2.12 15. ANS: A DIF: L1 OBJ: 2.12 16. ANS: C DIF: L2 OBJ: 2.12 17. ANS: C DIF: L2 OBJ: 2.14 18. ANS: D 19. ANS: C 20. ANS: C 21. ANS: D 22. ANS: B 23. ANS: A DIF: L1 OBJ: 2.1 24. ANS: A DIF: L1 OBJ: 2.1 25. ANS: D DIF: L1 OBJ: 2.3 26. ANS: A DIF: L1 OBJ: 2.3 27. ANS: C DIF: L2 OBJ: 2.3 28. ANS: C DIF: L2 OBJ: 2.3 29. ANS: C DIF: L1 OBJ: 2.5</p>