Middle School Physical Science Quiz
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MATTER AND ITS INTERACTIONS
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Two students describe a substance:
Student 1: "It is made of identical groups of atoms, and each group stays together as a unit. There is space between the groups."
Student 2: "It is made of atoms/ions bonded in a repeating pattern that continues throughout the solid, so there are no separate units."
Which student is describing a molecular substance, and which is describing an extended crystal structure?
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