Question

Name the type of crystalline solid formed from the following structural units and describe how the solid is formed.

i. Metal atoms

ii. Nonmetal atoms

Answer 1

Metallic solids are formed by metal atoms through metallic bonding. Nonmetallic solids can be classified as ionic, covalent network, or molecular depending on the type of bond between nonmetal atoms.

Step-by-step explanation:

There are two main types of crystalline solids formed from different structural units.

i. Metal atoms: Metallic solids are formed by metal atoms, which are held together by metallic bonding. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a 'sea' of delocalized electrons. Examples of metallic solids include crystals of copper, aluminum, and iron.

ii. Nonmetal atoms: Nonmetallic solids can be classified into different types, such as ionic solids, covalent network solids, and molecular solids. The specific way in which nonmetal atoms form a crystalline solid depends on the type of bond between the atoms. For example, in ionic solids, nonmetal atoms are held together by ionic bonds, while in covalent network solids, nonmetal atoms are linked by covalent bonds.

Answer 2

Metal: iron, silver, or gold. Made with metallic bonds. Is a Metallic solid.

Nonmetal: diamond. Made with covalent bonds. Is a Network Solid.