Question 1

The atomic number of an element is equal to the number of protons in each atom.

Accepted Answer

A) True 
 B)False

Question 2

The two most abundant elements in Earth's crust are __.

Accepted Answer

A)  iron and magnesium
B)  carbon and hydrogen
C)  carbon and oxygen
D)  hydrogen and oxygen
E)  oxygen and siliconF) A) and E)
G) A) and C)

Question 3

______ is an expansive (swells when wet) clay mineral.

Accepted Answer

A)  Quartz
B)  Olivine
C)  Pyroxene
D)  Montmorillonite
E)  MicaF) A) and E)
G) C) and D)

Question 4

What is the special property of the mineral halite?

Accepted Answer

A)  It has 5 directions of cleavage.
B)  It has a hardness of -3.
C)  It can transmit electricity.
D)  It tastes like salt.
E)  It has an extremely high melting temperature.F) A) and B)
G) C) and D)

Question 5

_______ and sapphire are both varieties of the common mineral corundum.

Accepted Answer

A)  Emerald
B)  Turquoise
C)  Ruby
D)  Beryl
E)  PeridotF) All of the above
G) A) and C)

Question 6

Specific gravity is the ratio of a mass of a substance to the mass of an equal volume of air.

Accepted Answer

A) True 
 B)False

Question 7

_______ of an element are atoms containing different numbers of neutrons but the same number of protons.

Accepted Answer

A)  Ions
B)  Classes
C)  Particles
D)  Isotopes
E)  VarietiesF) A) and E)
G) C) and E)

Question 8

The mineral ___ reacts with weak hydrochloric acid to produce carbon dioxide gas,i.e.,it effervesces (fizzes) in dilute acid.

Accepted Answer

A)  calcite
B)  feldspar
C)  quartz
D)  biotite
E)  amphiboleF) B) and E)
G) A) and D)

Question 9

The atomic number of an element equals the number of _____ in each atom.

Accepted Answer

A)  electrons
B)  neutrons
C)  protons
D)  Answers neutrons and protons are both correct; answer a is not correct.
E)  Answers electrons,neutrons and protons are all correct.F) All of the above
G) A) and B)

Question 10

____ elements make up 98% of the Earth's crust.

Accepted Answer

A)  Fourteen
B)  Ninety-two
C)  Two
D)  Twenty
E)  EightF) All of the above
G) A) and B)

Question 11

The atomic mass number of common oxygen is 16 because it has ___ protons and ___ neutrons.

Accepted Answer

A)  7; 9
B)  8; 8
C)  9; 7
D)  5; 11
E)  10; 6F) C) and D)
G) A) and B)

Question 12

The common mineral ___ is an example of an isolated silica tetrahedron structure.

Accepted Answer

A)  amphibole
B)  feldspar
C)  olivine
D)  pyroxene
E)  mica (biotite,muscovite,etc.) F) A) and B)
G) A) and C)

Question 13

____ has the property of generating electricity when squeezed in a certain crystallographic direction.

Accepted Answer

A)  Copper
B)  Mica
C)  Amphibole
D)  Gold
E)  QuartzF) A) and C)
G) A) and D)

Question 14

____ is the most common element in the Earth's crust.

Accepted Answer

A)  Oxygen
B)  Iron
C)  Magnesium
D)  Hydrogen
E)  FluorineF) All of the above
G) A) and D)

Question 15

A mineral is defined as a crystalline solid that is naturally occurring,has a specific chemical composition and forms through geologic processes.

Accepted Answer

A) True 
 B)False

Question 16

Rocks are defined as naturally-formed aggregates of minerals or mineral-like substances.

Accepted Answer

A) True 
 B)False

Question 17

Specific gravity is the ratio of the mass of a mineral to the mass of an equal volume of __.

Accepted Answer

A)  liquid water
B)  solid water
C)  quartz
D)  diamond
E)  airF) B) and D)
G) C) and D)

Question 18

On Mohs' scale of hardness your fingernail has a value of ____.

Accepted Answer

A)  12
B)  5
C)  2½
D)  6½
E)  9F) None of the above
G) A) and B)

Question 19

The _____ group of minerals are sheet silicates.

Accepted Answer

A)  amphibole
B)  feldspar
C)  olivine
D)  pyroxene
E)  micaF) A) and B)
G) A) and E)

Question 20

Calcite (calcium carbonate)is the most common non-silicate mineral in the Earth's crust.

Accepted Answer

A) True 
 B)False

Exam 9: Atoms,Elements and Minerals

The mineral ___ reacts with weak hydrochloric acid to produce carbon dioxide gas,i.e.,it effervesces (fizzes) in dilute acid.

Correct AnswerverifiedShow Answer

______ is an expansive (swells when wet) clay mineral.

Correct AnswerverifiedShow Answer

The atomic number of an element is equal to the number of protons in each atom.

Correct AnswerverifiedShow Answer

The common mineral ___ is an example of an isolated silica tetrahedron structure.

Correct AnswerverifiedShow Answer

____ is the most common element in the Earth's crust.

Correct AnswerverifiedShow Answer

A mineral is defined as a crystalline solid that is naturally occurring,has a specific chemical composition and forms through geologic processes.

Correct AnswerverifiedShow Answer

Specific gravity is the ratio of a mass of a substance to the mass of an equal volume of air.

Correct AnswerverifiedShow Answer

Calcite (calcium carbonate)is the most common non-silicate mineral in the Earth's crust.

Correct AnswerverifiedShow Answer

_______ and sapphire are both varieties of the common mineral corundum.

Correct AnswerverifiedShow Answer

The two most abundant elements in Earth's crust are __.

Correct AnswerverifiedShow Answer

_______ of an element are atoms containing different numbers of neutrons but the same number of protons.

Correct AnswerverifiedShow Answer

Specific gravity is the ratio of the mass of a mineral to the mass of an equal volume of __.

Correct AnswerverifiedShow Answer

The atomic mass number of common oxygen is 16 because it has ___ protons and ___ neutrons.

Correct AnswerverifiedShow Answer

The atomic number of an element equals the number of _____ in each atom.

Correct AnswerverifiedShow Answer

The _____ group of minerals are sheet silicates.

Correct AnswerverifiedShow Answer

____ elements make up 98% of the Earth's crust.

Correct AnswerverifiedShow Answer

Rocks are defined as naturally-formed aggregates of minerals or mineral-like substances.

Correct AnswerverifiedShow Answer

What is the special property of the mineral halite?

Correct AnswerverifiedShow Answer

____ has the property of generating electricity when squeezed in a certain crystallographic direction.

Correct AnswerverifiedShow Answer

On Mohs' scale of hardness your fingernail has a value of ____.

Correct AnswerverifiedShow Answer

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The atomic mass number of common oxygen is 16 because it has _ protons and _ neutrons.

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