The bond between K⁺ and Cl⁻ ions is an ionic bond
Atoms have different stability. Unstable atomic atoms will try to form stable electron configurations like those of noble gases. Where noble gases have the number of outer electrons 2 or 8
The formation of electron configurations such as noble gases can be done by forming shared ions or electron pairs
Atoms with high ionization energy and atoms that are difficult to draw electrons will form bonds with shared electron pairs (electrons can be from one atom or two atoms attached)
Inform ions, atoms will release or attract electrons
Ion bonds occur because atoms that have low ionization energy (easily release electrons) form a + ion, and these electrons are bound by atoms that have large affinity energy (easily pulling electrons)
Generally, ionic bonds occur in metals and nonmetallic elements. Metal elements have low ionization energy and non-metallic elements have a high electron affinity
In Atoms, to achieve stability, K will release one electron so that it has an electron configuration like noble gas Ar
Electron configuration of K (atomic number 19) and Ar (atomic number 18)
K: 2 8 8 1
Ar: 2 8 8
so that it becomes a K⁺ ion
While the Cl atom will bind one electron, so it has an electron configuration like noble gas Ar
Cl: 2 8 7
Ar: 2 8 8
So that it becomes a Cl⁻ ion
Finally, there will be an attractive attraction between positive and negative ions and KCl is formed
So the bond between K + and Action is an ionic bond
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