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Chapter 10: Problem 5

By means of Lewis structures, represent bonding between the following pairs of elements: (a) Cs and \(\mathrm{Br} ;\) (b) \(\mathrm{H}\) and \(\mathrm{Sb} ;\) (c) \(\mathrm{B}\) and \(\mathrm{Cl} ;\) (d) \(\mathrm{Cs}\) and \(\mathrm{Cl}\); (e) Li and O; (f) Cl and L. Your structures should show whether the bonding is essentially ionic or covalent.

Short Answer

Expert verified
Here are the Lewis structures and bond types of the given pair of elements. (a) Cs-Br = [Cs]+ [Br]- (Ionic), (b) H-Sb = H:Sb (Covalent), (c) B-Cl = B- (unless the charge is specified, no reasonable Lewis structure can be drawn), (d) Cs-Cl = [Cs]+ [Cl]- (Ionic), (e) Li-O = [Li]+ :O- (Ionic), (f) Cl-L= Cl:L (Covalent).

Step by step solution

01

Understanding Lewis Structures

Lewis structures, also known as electron dot structures, are diagrams that show the bonding between atoms of a molecule, and the lone pairs of electrons that may exist in the molecule. The total number of electrons represented in a Lewis structure is equal to the sum of the numbers of valence electrons of each atom in the molecule.
02

Get Electron Configuration

Determine the electron configuration of each element. This can be found using the periodic table.
03

Draw Lewis Symbols

The Lewis symbol of an element includes the symbol of the element plus one dot for each valence electron. For instance, the element Cs (Cesium) has one electron in its outer shell, which is represented by one dot, and Bromine (Br) has 7 valence electrons.
04

Determine Ionic or Covalent bonding

Covalent bonding involves the sharing of electron pairs between atoms. This usually occurs between non-metals. Whereas Ionic bonding involves the complete transfer of valence electrons between atoms and usually involves a metal bonding with a non-metal. For instance, between Cs (a metal) and Br (a non-metal), a CsBr molecule will be formed with one electron transferred from Cs to Br. This is an ionic bond. Repeat this process with each pair of elements.

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Most popular questions from this chapter

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