16 Results
Physical Properties   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Closest-Packed Structures   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Crystal Systems   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Lattices and Unit Cells   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Silicon Dioxide   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Diamond and Graphite   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Macromolecular Substances   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
The Ionic Crystal Lattice   
(Other (1))
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Thermochromism: Mercury(II) Iodide   
(Movie/Animation, Audio/Visual (2))
When red-orange Mercury(II) Iodide (HgI2) is heated, it undergoes a phase transition at 126oC to a pale yellow form. As the heated sample cools, it gradually returns to the original red-orange color.
Piezoelectric Effect   
(Movie/Animation, Audio/Visual (2))
Sounds accompany the discharges of electricity. A piezoelectric crystal is connected to a light bulb. When the crystal is pressed, the light flashes.
Sodium Chloride Crystal Cleavage   
(Movie/Animation, Audio/Visual (2))
A knife is placed on a large sodium chloride crystal parallel to a cleavage plane. When the knife is tapped, the crystal breaks cleanly, creating two smaller crystals.
Intermolecular_Forces__Liquids_and_Solids : DensityFromUnitCell (13 Variations)   
(Assessment Material (1))
Oldhamite (CaS) has a rock salt structure like NaCl (which has interpenetrating face-centered cubic structures). The ionic radius of Ca2+ is 0.99 angstroms, and the ionic radius of S2- is 1.84 angstroms. What is the density of CaS?
Intermolecular_Forces__Liquids_and_Solids : AtomRadiusUnitCell (7 Variations)   
(Assessment Material (1))
Nickel has a unit cell that is face-centered cubic with a volume of 43.763Å3. The atom at the center of each face just touches the atoms at the corners. What is the atomic radius of nickel?
Characteristics of Materials   
(Activity, Instructional Material (7), Test, Assessment Material (15))
What makes diapers absorbent? Is peanut butter stickier than syrup or jelly? Strong, stretchy, sticky, or sweet—everything around us has special properties which make them unique. See if you can identify and compare the characteristics of materials.
Crystals   
(Activity, Instructional Material (3))
ACS Science for Kids activities explore crystals and their properties.
Lattices and Unit Cells with Cultural Connections   
()
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.