Earth Science- Chapters 2 + 3: Question Preview (ID: 22623)

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This also tells you the number of protons in an atom.
a) Atomic number b) Atomic mass c) Family number d) Valence electrons
Pure substance that cannot be broken down into simpler substances
a) Element b) Atom c) Valence electron d) Isotope
Type of bond where electrons are shared.
a) Covalent b) Ionic c) d)
The number of protons in an atom of calcium.
a) 20 b) 17 c) 6 d) 29
True or False: Silicates are the most common mineral group.
a) True b) False c) d)
The number of valence electrons in an atom of carbon.
a) 4 b) 6 c) 12 d) 20
The hardest mineral.
a) Diamond b) Quartz c) Talc d) Galena
Color of a mineral in its powdered form.
a) Streak b) Luster c) Hardness d) Density
True or False: Extrusive igneous rocks from within Earth.
a) False b) True c) d)
Type of rock that forms from weathering and erosion.
a) Sedimentary rock b) Igneous rock c) Metamorphic rock d) Lava
Table salt is an example of this type of bond.
a) Ionic b) Covalent c) d)
The tendency of a mineral to break along flat, even surfaces.
a) Cleavage b) Fracture c) Luster d) Streak
A mineral has a volume of 25ml and a mass of 45g. Which of the following represents its density?
a) 1.8 b) 0.55 c) 2.45 d) 6.53
Used to describe how light is reflected from the surface of a mineral.
a) Luster b) Streak c) Hardness d) Fracture
Isotopes have the same number of protons but different number of
a) neutrons b) electrons c) d)
True or False: Metamorphic rocks form from pre-existing rock
a) True b) False c) d)
The number of valence electrons most atoms need to be stable.
a) 8 b) 2 c) 4 d) 6
True or False: Magma is above Earth's surface.
a) False b) True c) d)
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