1 / 12

Solids

Solids. Chemistry Mrs. Coyle. Solids. Atoms vibrate about fixed positions. Properties of Solids. Depend on their arrangement of their atoms. Melting Points. Temperature at which a solid changes to a liquid.

mcorning
Download Presentation

Solids

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Solids ChemistryMrs. Coyle

  2. Solids Atoms vibrate about fixed positions.

  3. Properties of Solids • Depend on their arrangement of their atoms.

  4. Melting Points • Temperature at which a solid changes to a liquid. • Vibrations of particles are strong enough to overcome the attraction that holds them in fixed locations. • Melting point is same as freezing points.

  5. Melting Points of Ionic and Molecular Solids • Ionic Solids have high melting points because strong forces are holding the particles together. • Molecular Solids have lower melting points. • Not all solids melt (ex. Wood, cane sugar, some plastics)

  6. Most Solids are Crystalline • Unit cell : the smallest group of particles that retains the shape of the crystal. • Crystal Lattice: a repeating array of unit cells.

  7. Simple Cubic,Body-Centered and Face-Centered

  8. Allotropes • Two or more different molecular forms of the same element in the same physical state.

  9. Allotropes of Carbon • Diamond • Graphite • Bucky Balls

  10. Buckminsterfullerene “Bucky Ball”

  11. Amorphous Solids • No order internal structure • Examples: glass, plastics, asphalt

More Related