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1. Define crystalline solid
Solids with highly regular arrangement of their components.
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2. Define lattice
3D system of points designating the centers of the components that make up the substance.
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3. Define glass
Amorphous solid made when silica is mixed w other compounds, heated above melting point, then cooled rapidly.
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4. Define amorphous solid.
Solids w considerable disorder in their structures
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5. Define unit cell
Smallest repeating unit in a crystal lattice
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6. What kind of bonds and physical properties does Fe have?
Metallic - high conductivity and malleable.
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7. Why kind of bonds and physical properties does SiO2 have?
Covalent - non-conducting, high melting pt.
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8. What kind of bonds and physical properties does Ne have?
Van der Waals - gas at room temp, weak bonding.
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9. What kind of bonds and physical properties does KI have?
Ionic - non-conducting, high melting pt
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10. Which of the three following crystal systems has the higher symmetry? Tetragonal, cubic, monoclinic.
Cubic
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11. Which of the crystal systems has the lowest symmetry? Tetragonal, cubic, monoclinic?
Monoclinic
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12. List 3 crystal defects.
Kink atom, adatom, vacancy
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