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Definition
| the temperature at which a substance changes from a solid to a liquid; |
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| a solid in which the atoms, ions, or molecules are arranged in an orderly, repeating, three-dimensional pattern called a crystal lattice |
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| the smallest group of particles within a crystal that retains the geometric shape of the crystal |
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| one of two or more different molecular forms of an element in the same physical state |
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| describes a solid that lacks an ordered internal structure; denotes a random arrangement of atoms |
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| transparent fusion of inorganic materials that have cooled to a rigid state without crystallizing |
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| what determines the properties of solids? |
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Definition
| arrangement of particles and their fixed locations |
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| how are solid particles packed? |
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| are solids easy to compress? |
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Definition
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| solid particles vibrate around what? |
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Definition
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| how does a solid break down into a liquid? |
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Definition
| kinetic energy makes vibrations arond fixed points increase to the point where particles break apart |
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| how are melting and freezing points related? |
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Definition
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| when is a liquid/ solid in equalibrium? |
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Definition
| at the exact melting point |
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| what determines the melting points in crystals? |
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Definition
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| how many groups are crystals organized into? |
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Definition
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| what does the unit cell do? |
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Definition
| repeats throughout a crystal |
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| how many unit cells are present in crystal systems? |
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Definition
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| what types of unit cells make up the cubic system? |
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Definition
| simple cubic/ body-centered/ face-centered |
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Definition
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| what is different between allotropes of the same element? |
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Definition
| structure, which causes a change in properties |
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| what kind of solid has randomly arranged particles? |
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Definition
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| what are examples of amorphous solids? |
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| rubber, plastic, asphalt, glass |
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| glass is a super "what" liquid? |
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| what does glass do when it's heated? |
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