Atomic, Ionic, and Molecular Solids - Video Tutorials & Practice Problems
Crystalline solids represent structures with well-organized patterns and shapes. Amorphous solids represent structures that lack an organized pattern or shape.
Atomic, Ionic and Molecular Solids Concept 1
Atomic, Ionic and Molecular Solids Example 1
What is the major electrostatic force found between ammonia molecules, NH3?
a bond
Ionic bond
Covalent bond
Intermolecular Forces
Anionic bond
As it cools off, olive oil slowly hardens and forms a solid over a range of temperatures. Which best describes it as a solid?
Compound A is hard, doesn't conduct electricity, and melts at 1400ºC. Compound A represents which of the following:
Classify each solid as amorphous, molecular, network covalent, alloy or ionic.
a) Steel ______________________
b) CO2 ______________________
c) Graphite ______________________
d) CaCO3 ______________________
e) Bronze, an alloy of Cu and Sn ______________________
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- Shown here are sketches of two processes. Which of the processes refers to the ductility of metals and which r...
- The following diagrams represent the electron population of the composite s–d band for three metals—Ag, Mo, an...
- Examine diagrams for the electron population of the composite s–d band for three metals in question 6. Which ...
- At three different temperatures,T1,T2,and T3,the molecules in a liquid crystal align in these ways: (a) At wh...
- At three different temperatures,T1,T2,andT3,the molecules in a liquid crystal align in these ways: (b) Which ...
- Silicon is the fundamental component of integrated circuits. Si has the same structure as diamond. (a) Is Si ...
- Silicon is the fundamental component of integrated circuits. Si has the same structure as diamond. (b) Silico...
- What kinds of attractive forces exist between particles (atoms, molecules, or ions) in (a) molecular crystals...
- What kinds of attractive forces exist between particles (atoms, molecules, or ions) in (d) and metallic cryst...
- Which type (or types) of crystalline solid is characterized by each of the following? (d) network of covalent...
- Which type (or types) of crystalline solid is characterized by each of the following? (c) high melting point ...
- Which type (or types) of crystalline solid is characterized by each of the following? (b) softness, relativel...
- Which type (or types) of crystalline solid is characterized by each of the following? (a) High mobility of el...
- Indicate the type of solid (molecular, metallic, ionic, or covalent-network) for each compound: (c) Ta2O5 (mel...
- You are given a gray substance that melts at 700 °C; the solid is a conductor of electricity and is insoluble...
- The following compound undergoes a phase transition from the solid to the smectic liquid crystal phase at 121 ...
- Chromium has a very high melting point at 1907 °C. The distance between Cr atoms in chromium metal is 252 pm. ...
- Which of the substances Na3PO4, CBr4, rubber, Au, and quartz best fits each of the following descriptions? (...
- Identify each solid as molecular, ionic, or atomic. d. I2(s)
- Identify each solid as molecular, ionic, or atomic. b. CO2(s)
- Identify each solid as molecular, ionic, or atomic. a. CaCl2(s)
- Which of these statements about alloys and intermetallic compounds is false? (a) Bronze is an example of an a...
- Determine if each statement is true or false: (b) Substitutional alloys have 'solute' atoms that replace 'solv...
- Which solid has the highest melting point? Why? C(s, diamond), Kr(s), NaCl(s), H2O(s)
- For each of the following alloy compositions, indicate whether you would expect it to be a substitutional allo...
- Which solid in each pair has the higher melting point and why? c. Kr(s) or Xe(s)
- Which solid in each pair has the higher melting point and why? d. NaCl(s) or CaO(s)
- Which solid in each pair has the higher melting point and why? d. H2O(s) or H2S(s)
- Indicate whether each statement is true or false: (c) Nonmetallic elements are never found in alloys.
- Which element or elements are alloyed with gold to make the following types of 'colored gold' used in the jew...
- State whether each sentence is true or false: (b) Metals have high electrical conductivities because they ar...
- Which would you expect to be the more ductile element, (a) Ag or Mo? In each case explain your reasoning.
- Classify each of the following as a component of a silicate ceramic, an oxide ceramic, or a nonoxide ceramic. ...
- Classify each of the following as a component of a silicate ceramic, an oxide ceramic, or a nonoxide ceramic. ...
- Classify each of the following as a component of a silicate ceramic, an oxide ceramic, or a nonoxide ceramic. ...
- Silicon carbide, SiC, is a covalent network solid with a structure similar to that of diamond. Sketch a small ...
- Which of the following statements does not follow from the fact that the alkali metals have relatively weak m...
- For each of the following groups, which metal would you expect to have the highest melting point: (b) rubidiu...
- Carbon and oxygen combine to form the molecular compound CO2, while silicon and oxygen combine to form a cov...
- The melting point of sodium metal is 97.8 °C, and the melting point of sodium chloride is 801 °C. What can yo...
- Sodium melts at 98 °C, and magnesium melts at 650 °C. Account for the higher melting point of magnesium using...
- Draw an MO energy-level diagram that shows the population of the 4s band for potassium metal.
- Indicatewhethereachstatementistrueorfalse: (c) Molecules that exhibit a liquid crystalline phase do so at well...
- State whether each of the following compounds is likely to have a liquid crystalline phase. Explain your reaso...
- Both covalent-network solids and ionic solids can have melting points well in excess of room temperature, and ...
- For a given substance, the liquid crystalline phase tends to be more viscous than the liquid phase. Why?
- Draw an MO energy-level diagram for beryllium metal, and show the population of the MOs for the following two...
- The melting points for the second-series transition elements increase from 1522 °C for yttrium to 2623 °C for...
- Two compounds (labeled I and II) have a liquid crystal state. Predict which compound has a higher temperature ...
- The smectic liquid crystalline phase can be said to be more highly ordered than the nematic phase. In what sen...
- Tungsten is hard and has a very high melting point (3422 °C), and gold is soft and has a relatively low melti...
- Explain why the enthalpy of vaporization of vanadium (460 kJ/mol) is much larger than that of zinc (114 kJ/mo...
- Indicate whether each statement is true or false: (a) Elastomers are rubbery solids.
- Which statement correctly describes a difference between graphene and graphite? (a) Graphene is a molecule b...
- Selected chlorides have the following melting points: NaCl (801 °C), MgCl2 (714 °C), PCl3 (-94 °C), SCl2 (-121...
- Introduction of carbon into a metallic lattice generally results in a harder, less ductile substance with low...
- Silicon carbide, SiC, has the three-dimensional structure shown in the figure. (b) Would you expect the bon...
- What is a ceramic, and what properties distinguish a ceramic from a metal?
- Why are oxide ceramics more corrosion-resistant than metals?
- Silicon nitride 1Si3N42, a high-temperature ceramic useful for making engine components, is a covalent networ...
- Describe the reactions that occur when an Si1OH24 sol becomes a gel. What is the formula of the ceramic obtai...
- Explain why graphite/epoxy composites are good materials for making tennis rackets and golf clubs.
- Explain why silicon carbide–reinforced alumina is stronger and tougher than pure alumina.
- Which statement best describes why carbon can form a wide variety of organic compounds?
- Consider the compound Al(OH)3. What type of solid does it form? Crystal lattice, glass, metal, or molecule?
- What type of crystalline solid is CH3CH2CH2CH3?
- All of the following describes ionic compounds except
- Classify each of these solids as ionic, molecular, metallic, or covalent (also known as covalent‑network solid...
- Classify each substance as an atomic element, molecular element, molecular compound, or ionic compound.
- 2. (a) Wc is an interstitial alloy. Describe its structure. (3 m
- Silica is a chemical compound __________________
- Can an ionic compound ever consist of a cation-cation or anion-anion bond