
Concept explainers
(a)
Interpretation:
The reason as to why the total energy of a system changes in the formation of an ionic bond is to be stated.
Concept introduction:
An ionic bond is formed by the transfer of electrons, which is also known as electrovalent bond. Ionic bonds are formed between electropositive and electronegative elements, which have larger electronegativity difference.
(b)
Interpretation:
The reason as to why the total energy of a system changes in the formation of a covalent bond is to be stated.
Concept introduction:
A covalent bond is formed by the mutual sharing of electrons. The number of electrons contributed by each atom is known as covalence of the atom. The covalent bond is stronger than ionic bonds because of the sharing of electrons.

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Chapter 12 Solutions
Introductory Chemistry: An Active Learning Approach
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