Test Bank For Physical Geology Exploring the Earth 6th Edition By James S. Monroe

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