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Chapter 12: Problem 16

Indicate the type of solid (molecular, metallic, ionic, or covalent-network) for each compound: (a) SiC, (b) \(\mathrm{Ni}\) (c) \(\mathrm{CaCl}_{2}\) (d) camphor \(\left(\mathrm{C}_{10} \mathrm{H}_{16} \mathrm{O}\right)\), (e) \(\mathrm{SiO}_{2}\).

Short Answer

Expert verified
The types of solids for each compound are: (a) SiC - Covalent-network solid (b) Ni - Metallic solid (c) CaCl2 - Ionic solid (d) Camphor (C10H16O) - Molecular solid (e) SiO2 - Covalent-network solid

Step by step solution

01

Identify the types of elements in the compound (a) SiC

Silicon (Si) is a metalloid and Carbon (C) is a non-metal. Both of them tend to form covalent bonds. In this compound, Si and C form a covalent-network solid due to the strong covalent bonds between them.
02

Identify the types of elements in the compound (b) Ni

Nickel (Ni) is a metal. Thus, nickel forms metallic bonds with itself and leads to the formation of a metallic solid.
03

Identify the types of elements in the compound (c) CaCl2

Calcium (Ca) is a metal and chlorine (Cl) is a non-metal. In this compound, metal and non-metal elements are combined, leading to the formation of ionic bonds. Hence, CaCl2 is an ionic solid.
04

Identify the types of elements in the compound (d) camphor (C10H16O)

The elements in camphor are carbon (C), hydrogen (H), and oxygen (O), which are all non-metals. Therefore, the bonds formed between these elements are covalent. Since camphor is a complex organic molecule, it forms a molecular solid.
05

Identify the types of elements in the compound (e) SiO2

Silicon (Si) is a metalloid and oxygen (O) is a non-metal. These elements form covalent bonds. In this compound, Si and O form a covalent-network solid due to the strong covalent bonds between them. In conclusion, the types of solids for each compound are: (a) SiC - Covalent-network solid (b) Ni - Metallic solid (c) CaCl2 - Ionic solid (d) Camphor (C10H16O) - Molecular solid (e) SiO2 - Covalent-network solid

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Most popular questions from this chapter

GaP has a band gap of \(2.26 \mathrm{eV}\). If GaP is illuminated with ultraviolet light, it emits light equal to the band gap energy. (a) What color is the emitted light? (b) Would appropriately sized GaP quantum dots be able to emit blue light? (c) What about red light?

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Indicate whether each statement is true or false: (a) Substitutional alloys tend to be more ductile than interstitial alloys. (b) Interstitial alloys tend to form between elements with similar ionic radii. (c) Nonmetallic elements are never found in alloys.

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Indicate whether this statement is true or false: If you want a semiconductor that emits blue light, you could either use a material that has a band gap corresponding to the energy of a blue photon or you could use a material that has a smaller band gap but make an appropriately sized nanoparticle of the same material.
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