Inorganic chemistry

Ionic bonds are formed when?

Ionic bond are formed when?


Ionic bonds are formed when ?

Ionic bond :

Ion bonding is a particular type of chemical bond . Ionic bonds can form between ions of opposite signs . There are no pure ionic bonds. They are generally associated with a certain degree of covalent bonds .

Ionic bonds between certain atoms

Ionic bonds are formed between atoms with a large difference in electronegativity. In addition, the larger it is, the more likely a bond is to be ionic, for example between electron- donating metal atoms – which then become positively charged ions ( cation ) – and low electronegativity, and electron-accepting non-metal atoms – which then become negatively charged ions ( anion ) – and high electronegativity.

Example of ionic bonds with table salt (NaCl)ionic bond

An example of ionic bond can be found in the kitchen . Indeed, when sodium (Na) is put in the presence of chlorine (Cl), the sodium atoms lose an electron and the chlorine atoms gain one. The Na + ions and the Cl- ions then form sodium chloride , of formula NaCl.

Unlike the covalent bond, the ionic bond is neither directed nor localized. Each of the Na + ions is attracted by several Cl- ions and vice versa. Na + ions , like Cl- ions, on the other hand, repel each other. Finally, between attractions and repulsions, table salt has a crystalline structure in which we can not find pairs of atoms linked together. It is therefore not possible to isolate a molecule of NaCl

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