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Multiple Choice
A) carbon
B) potassium
C) aluminum
D) calcium
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Multiple Choice
A) 19
B) 7
C) 13
D) 6
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Multiple Choice
A) electrons in the nucleus
B) protons in the nucleus
C) neutrons in the outer nuclear shell
D) electrons in the valence bond level
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True/False
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A) neutron
B) selectron
C) electron
D) protons
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A) hematite
B) feldspar
C) calcite
D) halite
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A) luster
B) cleavage
C) streak
D) hardness
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Multiple Choice
A) The atoms have different numbers of protons and the same number of neutrons.
B) The atoms have the same number of electrons and different numbers of protons.
C) The atoms have different numbers of neutrons and the same number of protons.
D) The atoms have different numbers of electrons but the same number of neutrons.
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True/False
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True/False
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Multiple Choice
A) gold has a higher density and specific gravity than quartz and olivine
B) gold is 6 to 7 times harder than olivine and quartz
C) gold and olivine are silicates, whereas quartz is elemental silicon
D) olivine and quartz powders are harder than metallic gold
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A) protons
B) electrons
C) isotrons
D) neutrons
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Multiple Choice
A) reserves
B) ores
C) resources
D) tailings
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