Which of the following characteristics of elements is the most suitable for ionic bond formation?
Which of the following characteristics of elements is the most suitable for ionic bond formation?
The correct option is A Significant difference in ionization energy
Explanation for the correct option:
Ionic bond is formed between two types of ions in which the metal ion is the cation and the non-metal ion is the anion.
(A) Significant difference in ionization energy: Ionic bonds are when the ions have a large difference in the ionization energy because the metals have low ionization energy and the non-metals have high ionization energy. Metals with low ionization energy lose electrons rapidly and produce cations. Non-metal with a high electron affinity can receive an electron and create an anion.
Explanation for the incorrect options:
(B) Bigger size of cation and anion: The formation of the ionic bond does not depend on the size of the cation and anion.
(C) Smaller size of cation and anion: The formation of the ionic bond does not depend on the size of the cation and anion.
(D) Less difference in number of valence electrons: For the formation of the ionic bond, there must be a large difference in the electrons present in the valence shell. For example, in Sodium chloride () the valence electrons in Sodium () is 1 and the valence electrons in Chlorine () are 7. The difference in the valence electrons of Sodium and Chlorine is high.
Therefore, the correct option is (A).
Significant difference in ionization energy
Explanation for the correct option:
Ionic bond is formed between two types of ions in which the metal ion is the cation and the non-metal ion is the anion.
(A) Significant difference in ionization energy: Ionic bonds are when the ions have a large difference in the ionization energy because the metals have low ionization energy and the non-metals have high ionization energy. Metals with low ionization energy lose electrons rapidly and produce cations. Non-metal with a high electron affinity can receive an electron and create an anion.
Explanation for the incorrect options:
(B) Bigger size of cation and anion: The formation of the ionic bond does not depend on the size of the cation and anion.
(C) Smaller size of cation and anion: The formation of the ionic bond does not depend on the size of the cation and anion.
(D) Less difference in number of valence electrons: For the formation of the ionic bond, there must be a large difference in the electrons present in the valence shell. For example, in Sodium chloride () the valence electrons in Sodium () is 1 and the valence electrons in Chlorine () are 7. The difference in the valence electrons of Sodium and Chlorine is high.
Therefore, the correct option is (A).
