Test Bank For Physical Geology Exploring the Earth 6th Edition By James S. Monroe
Chapter 3 – Minerals – The Building Blocks of Rocks145
CHAPTER 3 TEST QUESTIONS
TRUE OR FALSE
1. The United States and Canada owe much of their economic success to their abundant supply of mineral resources.
ANSWER: true
2. Gems are found in nature and rarely need to be modified to make them ready for jewelry.
ANSWER: false
3. Diamond is the only naturally-occurring mineral that scratches glass.
ANSWER: false
4.. Ice is a mineral but water is not.
ANSWER: true
5.. Isotopes of a given element vary in their number of neutrons but not in their number of protons.
ANSWER: true
6.. All minerals are compounds.
ANSWER: false
7. Native minerals are among those that occur in concentrations known as ores.
ANSWER: true
8. Noble gases are chemically inert because their outer electron shell is filled.
ANSWER: true
9. Van der Waals bonds occur between atoms or compounds without free electrons.
ANSWER: true
10. The number of neutrons in an atom always equals the number of protons.
ANSWER: false
11. The atomic mass of an atom may vary but its atomic number does not.
ANSWER: true
12. Radicals are groups of tightly-bonded atoms that behave as a single element.
ANSWER: true
13. Olivine is an example of a mineral with isolated silica tetrahedra.
ANSWER: true
14. Minerals are crystalline solids but may not exhibit well-formed crystals.
ANSWER: true
15. Mica and clay minerals have a platy crystal form because they have a sheet-like structure of silica tetrahedra.
ANSWER: true
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