Exam 2: Earth Materials

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Ionic bonds are the strongest chemical bonds,and elements and compounds with ionic bonds (such as diamond)tend to be strong and hard.

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A(n)______ is the smallest chemical unit that retains all of the properties of a compound.

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There are 8 protons in the nucleus of an oxygen atom.How many neutrons are there in oxygen 16,oxygen 17,and oxygen 18,respectively?

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A molecule is the smallest individual particle that retains the distinctive properties of an element.

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In ionic bonding,one atom may transfer electrons to another,creating ions with differing electrical charge.

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The smallest chemical unit that has all the properties of a particular compound is called a(n)

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The atomic number of an atom is

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A(n)______ is the most fundamental substance into which matter can be separated by chemical means.

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A neutron is a positively charged particle with an atomic mass of 1,which resides in the nucleus of an atom.

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_____ and silicon are the two most common elements in Earth's crust.

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A hypothetical ion X has an electrical charge of -2.Which of the following statements best describes the relative number of electrons and protons in the atom?

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The photographs below show an outcrop and close up view of a particular kind of rock.What type of rock is it,and what holds this type of rock together? Also,explain how such a rock might form. The photographs below show an outcrop and close up view of a particular kind of rock.What type of rock is it,and what holds this type of rock together? Also,explain how such a rock might form.

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Minerals can be described in terms of two kinds of features: assemblage and texture.

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What are the four requirements necessary to classify a solid material as a mineral?

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Which sample is an example of an igneous rock? Which sample is an example of an igneous rock?

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To which of the following groups do most minerals in Earth's crust belong?

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The four types of bonding that are important in minerals are ______,covalent,metallic,and Van der Waals.

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Based on the definition of a mineral - being a naturally occurring solid,formed by inorganic processes,with a characteristic crystal structure and specific chemical composition,which materials will be classified as minerals?

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The property of a mineral that relates to how heavy it is for its size is referred to as:

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The smallest particle that retains all of the chemical properties of an element is called a(n)

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